./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product44.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_product44.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 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:16:10,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:16:10,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:16:10,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:16:10,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:16:10,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:16:10,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:16:10,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:16:10,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:16:10,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:16:10,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:16:10,286 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:16:10,286 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:16:10,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:16:10,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:16:10,288 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:16:10,288 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:16:10,288 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:16:10,288 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:16:10,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:16:10,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:16:10,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:16:10,288 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:16:10,288 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 -> 40ec21bd2775f54496a6d376e4b1b562b086a4c18151452e7b83204c384db515 [2025-03-04 16:16:10,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:16:10,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:16:10,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:16:10,519 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:16:10,519 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:16:10,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2025-03-04 16:16:11,663 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a86980d/9465e7404d614bd993e8d47175c64715/FLAG3819d052a [2025-03-04 16:16:11,898 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:16:11,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product44.cil.c [2025-03-04 16:16:11,910 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a86980d/9465e7404d614bd993e8d47175c64715/FLAG3819d052a [2025-03-04 16:16:12,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a86980d/9465e7404d614bd993e8d47175c64715 [2025-03-04 16:16:12,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:16:12,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:16:12,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:12,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:16:12,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:16:12,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6b090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12, skipping insertion in model container [2025-03-04 16:16:12,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:16:12,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:12,444 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:16:12,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [153] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [191] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [288] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [323] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [332] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [698] [2025-03-04 16:16:12,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] [2025-03-04 16:16:12,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:16:12,529 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:16:12,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12 WrapperNode [2025-03-04 16:16:12,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:16:12,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:12,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:16:12,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:16:12,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,560 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 53, calls inlined = 65, statements flattened = 439 [2025-03-04 16:16:12,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:16:12,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:16:12,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:16:12,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:16:12,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,581 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 16:16:12,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,596 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:16:12,607 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:16:12,607 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:16:12,607 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:16:12,608 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (1/1) ... [2025-03-04 16:16:12,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:16:12,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:16:12,643 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 16:16:12,645 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 16:16:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:16:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:16:12,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:16:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:16:12,708 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:16:12,709 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:16:13,064 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L285-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:13,064 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L285-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L285-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L814-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L814-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L814-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L320-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L271-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L271-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L271-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L239-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L805-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L805-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:16:13,067 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L805-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:16:13,068 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L150-1: main_#res#1 := main_~retValue_acc~0#1; [2025-03-04 16:16:13,091 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2025-03-04 16:16:13,091 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:16:13,100 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:16:13,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:16:13,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:13 BoogieIcfgContainer [2025-03-04 16:16:13,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:16:13,103 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:16:13,103 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:16:13,107 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:16:13,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:13,108 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:16:12" (1/3) ... [2025-03-04 16:16:13,109 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15481188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:13, skipping insertion in model container [2025-03-04 16:16:13,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:13,110 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:16:12" (2/3) ... [2025-03-04 16:16:13,110 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15481188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:16:13, skipping insertion in model container [2025-03-04 16:16:13,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:16:13,110 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:13" (3/3) ... [2025-03-04 16:16:13,111 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2025-03-04 16:16:13,151 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:16:13,151 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:16:13,151 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:16:13,151 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:16:13,151 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:16:13,151 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:16:13,151 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:16:13,151 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:16:13,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 129 states, 128 states have (on average 1.3515625) internal successors, (173), 128 states have internal predecessors, (173), 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 16:16:13,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2025-03-04 16:16:13,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:13,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:13,181 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:13,181 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 16:16:13,181 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:16:13,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 129 states, 128 states have (on average 1.3515625) internal successors, (173), 128 states have internal predecessors, (173), 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 16:16:13,187 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2025-03-04 16:16:13,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:13,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:13,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:13,190 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 16:16:13,194 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:13,195 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet49#1;test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet50#1;test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet51#1;test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet52#1;test_~tmp___1~1#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___1~1#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~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:13,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1372711370, now seen corresponding path program 1 times [2025-03-04 16:16:13,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353894224] [2025-03-04 16:16:13,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,278 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:13,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:13,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1901687673, now seen corresponding path program 1 times [2025-03-04 16:16:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619949492] [2025-03-04 16:16:13,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:13,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:13,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,318 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:13,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:16:13,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:16:13,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:13,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1830000828, now seen corresponding path program 1 times [2025-03-04 16:16:13,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562038079] [2025-03-04 16:16:13,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:16:13,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:16:13,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:13,505 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 16:16:13,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:13,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562038079] [2025-03-04 16:16:13,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562038079] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:13,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:13,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:16:13,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630845000] [2025-03-04 16:16:13,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:13,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:13,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 16:16:13,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 16:16:13,596 INFO L87 Difference]: Start difference. First operand has 129 states, 128 states have (on average 1.3515625) internal successors, (173), 128 states have internal predecessors, (173), 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 16:16:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:13,691 INFO L93 Difference]: Finished difference Result 306 states and 399 transitions. [2025-03-04 16:16:13,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 399 transitions. [2025-03-04 16:16:13,702 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 197 [2025-03-04 16:16:13,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 276 states and 369 transitions. [2025-03-04 16:16:13,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 276 [2025-03-04 16:16:13,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 276 [2025-03-04 16:16:13,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 276 states and 369 transitions. [2025-03-04 16:16:13,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:13,709 INFO L218 hiAutomatonCegarLoop]: Abstraction has 276 states and 369 transitions. [2025-03-04 16:16:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states and 369 transitions. [2025-03-04 16:16:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 169. [2025-03-04 16:16:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 169 states have (on average 1.3372781065088757) internal successors, (226), 168 states have internal predecessors, (226), 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 16:16:13,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 226 transitions. [2025-03-04 16:16:13,758 INFO L240 hiAutomatonCegarLoop]: Abstraction has 169 states and 226 transitions. [2025-03-04 16:16:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 16:16:13,762 INFO L432 stractBuchiCegarLoop]: Abstraction has 169 states and 226 transitions. [2025-03-04 16:16:13,764 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:16:13,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 226 transitions. [2025-03-04 16:16:13,765 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 119 [2025-03-04 16:16:13,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:13,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:13,768 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:13,768 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] [2025-03-04 16:16:13,768 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:13,768 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet49#1;test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet50#1;test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet51#1;test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet52#1;test_~tmp___1~1#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___1~1#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:13,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1372711370, now seen corresponding path program 2 times [2025-03-04 16:16:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748492622] [2025-03-04 16:16:13,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:16:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,777 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,777 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:16:13,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,777 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:13,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:13,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1908872881, now seen corresponding path program 1 times [2025-03-04 16:16:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206226636] [2025-03-04 16:16:13,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 16:16:13,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 16:16:13,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:13,809 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 16:16:13,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:13,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206226636] [2025-03-04 16:16:13,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206226636] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:13,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:13,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:16:13,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663730455] [2025-03-04 16:16:13,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:13,811 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:16:13,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:13,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:16:13,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:16:13,812 INFO L87 Difference]: Start difference. First operand 169 states and 226 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 16:16:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:13,868 INFO L93 Difference]: Finished difference Result 224 states and 288 transitions. [2025-03-04 16:16:13,868 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 288 transitions. [2025-03-04 16:16:13,870 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2025-03-04 16:16:13,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 224 states and 288 transitions. [2025-03-04 16:16:13,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 224 [2025-03-04 16:16:13,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 224 [2025-03-04 16:16:13,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 224 states and 288 transitions. [2025-03-04 16:16:13,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:13,877 INFO L218 hiAutomatonCegarLoop]: Abstraction has 224 states and 288 transitions. [2025-03-04 16:16:13,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states and 288 transitions. [2025-03-04 16:16:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2025-03-04 16:16:13,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 224 states have (on average 1.2857142857142858) internal successors, (288), 223 states have internal predecessors, (288), 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 16:16:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2025-03-04 16:16:13,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 224 states and 288 transitions. [2025-03-04 16:16:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:16:13,884 INFO L432 stractBuchiCegarLoop]: Abstraction has 224 states and 288 transitions. [2025-03-04 16:16:13,884 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:16:13,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 224 states and 288 transitions. [2025-03-04 16:16:13,886 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2025-03-04 16:16:13,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:13,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:13,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:13,886 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] [2025-03-04 16:16:13,886 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:13,886 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet49#1;test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet50#1;test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet51#1;test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1;" "isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:13,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1372711370, now seen corresponding path program 3 times [2025-03-04 16:16:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998846546] [2025-03-04 16:16:13,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:16:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,906 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,907 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:16:13,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,907 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:13,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:13,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:13,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:13,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash -110935961, now seen corresponding path program 1 times [2025-03-04 16:16:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963948182] [2025-03-04 16:16:13,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:16:13,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:16:13,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,922 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:13,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:16:13,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:16:13,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:13,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:13,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:13,930 INFO L85 PathProgramCache]: Analyzing trace with hash 169353170, now seen corresponding path program 1 times [2025-03-04 16:16:13,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:13,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496407943] [2025-03-04 16:16:13,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:13,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 16:16:13,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 16:16:13,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:13,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:16:14,082 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 16:16:14,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:16:14,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496407943] [2025-03-04 16:16:14,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496407943] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:16:14,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:16:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:16:14,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129284304] [2025-03-04 16:16:14,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:16:14,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:16:14,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:16:14,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:16:14,185 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. cyclomatic complexity: 67 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 16:16:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:16:14,259 INFO L93 Difference]: Finished difference Result 441 states and 557 transitions. [2025-03-04 16:16:14,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 441 states and 557 transitions. [2025-03-04 16:16:14,261 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 322 [2025-03-04 16:16:14,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 441 states to 441 states and 557 transitions. [2025-03-04 16:16:14,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 441 [2025-03-04 16:16:14,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 441 [2025-03-04 16:16:14,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 441 states and 557 transitions. [2025-03-04 16:16:14,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:16:14,270 INFO L218 hiAutomatonCegarLoop]: Abstraction has 441 states and 557 transitions. [2025-03-04 16:16:14,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states and 557 transitions. [2025-03-04 16:16:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2025-03-04 16:16:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 441 states have (on average 1.2630385487528344) internal successors, (557), 440 states have internal predecessors, (557), 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 16:16:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 557 transitions. [2025-03-04 16:16:14,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 441 states and 557 transitions. [2025-03-04 16:16:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:16:14,286 INFO L432 stractBuchiCegarLoop]: Abstraction has 441 states and 557 transitions. [2025-03-04 16:16:14,286 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:16:14,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 441 states and 557 transitions. [2025-03-04 16:16:14,288 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 322 [2025-03-04 16:16:14,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:16:14,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:16:14,290 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:16:14,290 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] [2025-03-04 16:16:14,290 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:16:14,291 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet49#1;test_~tmp~8#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet50#1;test_~tmp___0~2#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet51#1;test_~tmp___2~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet52#1;test_~tmp___1~1#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1;" "assume !(0 != test_~tmp___1~1#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1;" "isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:16:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1372711370, now seen corresponding path program 4 times [2025-03-04 16:16:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150926573] [2025-03-04 16:16:14,292 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 16:16:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:14,297 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-04 16:16:14,304 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 16:16:14,307 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 16:16:14,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,307 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:14,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:14,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:14,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:14,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:14,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1619320124, now seen corresponding path program 1 times [2025-03-04 16:16:14,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:14,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072770123] [2025-03-04 16:16:14,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:14,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 16:16:14,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 16:16:14,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:14,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,334 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:14,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 16:16:14,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 16:16:14,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:14,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:14,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:16:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1450562415, now seen corresponding path program 1 times [2025-03-04 16:16:14,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:16:14,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193440950] [2025-03-04 16:16:14,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:16:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:16:14,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 16:16:14,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 16:16:14,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:14,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,361 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:14,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 16:16:14,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 16:16:14,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:14,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:14,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:16:15,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:15,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:15,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:15,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:15,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:16:15,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:16:15,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:16:15,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:16:15,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:16:15,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:16:15 BoogieIcfgContainer [2025-03-04 16:16:15,101 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:16:15,102 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:16:15,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:16:15,102 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:16:15,103 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:16:13" (3/4) ... [2025-03-04 16:16:15,104 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:16:15,133 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:16:15,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:16:15,133 INFO L158 Benchmark]: Toolchain (without parser) took 2903.17ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 106.3MB in the end (delta: 16.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2025-03-04 16:16:15,134 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:15,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.92ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 104.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:16:15,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.74ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 101.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:15,134 INFO L158 Benchmark]: Boogie Preprocessor took 45.49ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:16:15,134 INFO L158 Benchmark]: IcfgBuilder took 495.93ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 74.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:16:15,135 INFO L158 Benchmark]: BuchiAutomizer took 1998.17ms. Allocated memory is still 167.8MB. Free memory was 74.1MB in the beginning and 110.1MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:15,135 INFO L158 Benchmark]: Witness Printer took 31.01ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 106.3MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:16:15,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.92ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 104.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.74ms. Allocated memory is still 167.8MB. Free memory was 104.1MB in the beginning and 101.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.49ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 495.93ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 74.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1998.17ms. Allocated memory is still 167.8MB. Free memory was 74.1MB in the beginning and 110.1MB in the end (delta: -35.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.01ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 106.3MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [153] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [191] - GenericResultAtLocation [Line: 288]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [288] - GenericResultAtLocation [Line: 323]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [323] - GenericResultAtLocation [Line: 332]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [332] - GenericResultAtLocation [Line: 698]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [698] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] * 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 441 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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, 107 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, 530 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 530 mSDsluCounter, 1595 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1130 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 465 mSDtfsCounter, 127 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: 906]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L906] COND TRUE 1 [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp)) [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp___1)) [L953] CALL timeShift() [L710] COND FALSE !(\read(pumpRunning)) [L717] COND TRUE \read(systemActive) [L719] CALL processEnvironment() [L739] int tmp ; [L742] COND TRUE ! pumpRunning [L744] CALL, EXPR isHighWaterLevel() [L854] int retValue_acc ; [L855] int tmp ; [L856] int tmp___0 ; [L860] CALL, EXPR isHighWaterSensorDry() [L275] int retValue_acc ; [L278] COND TRUE waterLevel < 2 [L279] retValue_acc = 1 [L280] return (retValue_acc); [L860] RET, EXPR isHighWaterSensorDry() [L860] tmp = isHighWaterSensorDry() [L862] COND TRUE \read(tmp) [L863] tmp___0 = 0 [L867] retValue_acc = tmp___0 [L868] return (retValue_acc); [L744] RET, EXPR isHighWaterLevel() [L744] tmp = isHighWaterLevel() [L746] COND FALSE !(\read(tmp)) [L752] FCALL processEnvironment__wrappee__base() [L719] RET processEnvironment() [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND FALSE !(tmp___0 == 2) [L725] RET __utac_acc__Specification3_spec__1() [L953] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 906]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L502] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L703] int pumpRunning = 0; [L704] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L315] int retValue_acc ; [L318] retValue_acc = 1 [L319] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L897] int splverifierCounter ; [L898] int tmp ; [L899] int tmp___0 ; [L900] int tmp___1 ; [L901] int tmp___2 ; [L904] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L906] COND TRUE 1 [L908] COND TRUE splverifierCounter < 4 [L914] tmp = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp)) [L924] tmp___0 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___0)) [L934] tmp___2 = __VERIFIER_nondet_int() [L936] COND FALSE !(\read(tmp___2)) [L942] tmp___1 = __VERIFIER_nondet_int() [L944] COND FALSE !(\read(tmp___1)) [L953] CALL timeShift() [L710] COND FALSE !(\read(pumpRunning)) [L717] COND TRUE \read(systemActive) [L719] CALL processEnvironment() [L739] int tmp ; [L742] COND TRUE ! pumpRunning [L744] CALL, EXPR isHighWaterLevel() [L854] int retValue_acc ; [L855] int tmp ; [L856] int tmp___0 ; [L860] CALL, EXPR isHighWaterSensorDry() [L275] int retValue_acc ; [L278] COND TRUE waterLevel < 2 [L279] retValue_acc = 1 [L280] return (retValue_acc); [L860] RET, EXPR isHighWaterSensorDry() [L860] tmp = isHighWaterSensorDry() [L862] COND TRUE \read(tmp) [L863] tmp___0 = 0 [L867] retValue_acc = tmp___0 [L868] return (retValue_acc); [L744] RET, EXPR isHighWaterLevel() [L744] tmp = isHighWaterLevel() [L746] COND FALSE !(\read(tmp)) [L752] FCALL processEnvironment__wrappee__base() [L719] RET processEnvironment() [L725] CALL __utac_acc__Specification3_spec__1() [L159] int tmp ; [L160] int tmp___0 ; [L161] int tmp___1 ; [L165] CALL, EXPR isMethaneLevelCritical() [L234] int retValue_acc ; [L237] retValue_acc = methaneLevelCritical [L238] return (retValue_acc); [L165] RET, EXPR isMethaneLevelCritical() [L165] tmp = isMethaneLevelCritical() [L167] COND FALSE !(\read(tmp)) [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp___0 = getWaterLevel() [L173] COND FALSE !(tmp___0 == 2) [L725] RET __utac_acc__Specification3_spec__1() [L953] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:16:15,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)