./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_product49.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 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:47:19,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:47:19,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:47:19,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:47:19,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:47:19,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:47:19,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:47:19,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:47:19,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:47:19,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:47:19,087 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:47:19,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:47:19,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:47:19,089 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:47:19,089 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:47:19,090 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:47:19,090 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:47:19,090 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:47:19,090 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:47:19,090 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:47:19,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:47:19,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:47:19,093 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:47:19,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:47:19,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:47:19,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:47:19,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:47:19,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:47:19,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:47:19,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:47:19,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:47:19,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:47:19,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:47:19,095 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:47:19,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:47:19,095 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:47:19,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:47:19,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:47:19,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:47:19,096 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:47:19,096 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 [2024-11-17 08:47:19,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:47:19,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:47:19,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:47:19,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:47:19,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:47:19,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2024-11-17 08:47:20,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:47:20,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:47:20,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2024-11-17 08:47:20,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40377e5e3/f5f36821bc9c40b585bdc3c6968f5431/FLAGcc22ecdc8 [2024-11-17 08:47:21,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40377e5e3/f5f36821bc9c40b585bdc3c6968f5431 [2024-11-17 08:47:21,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:47:21,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:47:21,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:21,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:47:21,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:47:21,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49575744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21, skipping insertion in model container [2024-11-17 08:47:21,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:47:21,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:21,338 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:47:21,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-11-17 08:47:21,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [257] [2024-11-17 08:47:21,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [325] [2024-11-17 08:47:21,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [361] [2024-11-17 08:47:21,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [464] [2024-11-17 08:47:21,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [502] [2024-11-17 08:47:21,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [868] [2024-11-17 08:47:21,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [964] [2024-11-17 08:47:21,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:21,408 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:47:21,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21 WrapperNode [2024-11-17 08:47:21,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:21,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:21,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:47:21,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:47:21,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,454 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 53, calls inlined = 83, statements flattened = 580 [2024-11-17 08:47:21,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:21,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:47:21,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:47:21,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:47:21,463 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,466 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,479 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]. [2024-11-17 08:47:21,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,486 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:47:21,492 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:47:21,492 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:47:21,492 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:47:21,493 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:47:21,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:47:21,525 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) [2024-11-17 08:47:21,527 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 [2024-11-17 08:47:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:47:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:47:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:47:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:47:21,646 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:47:21,648 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:47:22,024 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L961-1: main_#res#1 := main_~retValue_acc~13#1; [2024-11-17 08:47:22,024 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L499-1: valid_product_#res#1 := valid_product_~retValue_acc~9#1; [2024-11-17 08:47:22,024 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,024 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L235-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,025 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; [2024-11-17 08:47:22,026 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L438-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L406-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L406-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L406-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L180-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L180-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L180-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L461-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-17 08:47:22,027 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L461-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-17 08:47:22,028 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L461-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-17 08:47:22,050 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-17 08:47:22,050 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:47:22,062 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:47:22,062 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:47:22,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:22 BoogieIcfgContainer [2024-11-17 08:47:22,063 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:47:22,063 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:47:22,063 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:47:22,068 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:47:22,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:22,069 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:47:21" (1/3) ... [2024-11-17 08:47:22,069 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e12bfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:22, skipping insertion in model container [2024-11-17 08:47:22,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:22,069 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21" (2/3) ... [2024-11-17 08:47:22,070 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e12bfa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:22, skipping insertion in model container [2024-11-17 08:47:22,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:22,070 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:22" (3/3) ... [2024-11-17 08:47:22,071 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2024-11-17 08:47:22,112 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:47:22,112 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:47:22,112 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:47:22,113 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:47:22,113 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:47:22,113 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:47:22,113 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:47:22,113 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:47:22,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 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) [2024-11-17 08:47:22,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2024-11-17 08:47:22,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:22,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:22,140 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,140 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,140 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:47:22,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 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) [2024-11-17 08:47:22,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2024-11-17 08:47:22,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:22,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:22,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,154 INFO L745 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 32#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 18#L490true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 138#L483true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 117#L498true assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 41#L951true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 87#L928true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 36#L271true [2024-11-17 08:47:22,155 INFO L747 eck$LassoCheckResult]: Loop: 36#L271true assume true; 27#L271-1true assume !false; 13#test_while_0_continue#1true assume true; 79#L273true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 14#L281true assume !(0 != test_~tmp~4#1); 39#L289true havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 105#L291true assume !(0 != test_~tmp___0~2#1); 46#L299true havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 123#L301true assume 0 != test_~tmp___2~0#1; 145#L314true assume { :begin_inline_timeShift } true; 99#L68-2true assume !(0 != ~pumpRunning~0); 153#L75-2true assume !(0 != ~systemActive~0); 148#L83-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 85#L405-2true assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 157#L337-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 65#L358-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4#L85-2true assume true;assume { :end_inline_timeShift } true; 36#L271true [2024-11-17 08:47:22,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 1 times [2024-11-17 08:47:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805635710] [2024-11-17 08:47:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:22,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash 322268889, now seen corresponding path program 1 times [2024-11-17 08:47:22,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204675569] [2024-11-17 08:47:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:22,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,300 INFO L85 PathProgramCache]: Analyzing trace with hash 879024356, now seen corresponding path program 1 times [2024-11-17 08:47:22,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328805300] [2024-11-17 08:47:22,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:22,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:22,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328805300] [2024-11-17 08:47:22,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328805300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:22,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:22,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:22,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396432416] [2024-11-17 08:47:22,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:22,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:22,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 08:47:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 08:47:22,619 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-11-17 08:47:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:22,701 INFO L93 Difference]: Finished difference Result 167 states and 219 transitions. [2024-11-17 08:47:22,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167 states and 219 transitions. [2024-11-17 08:47:22,707 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-17 08:47:22,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167 states to 156 states and 208 transitions. [2024-11-17 08:47:22,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2024-11-17 08:47:22,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2024-11-17 08:47:22,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 208 transitions. [2024-11-17 08:47:22,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:22,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 156 states and 208 transitions. [2024-11-17 08:47:22,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 208 transitions. [2024-11-17 08:47:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-11-17 08:47:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 155 states have internal predecessors, (208), 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) [2024-11-17 08:47:22,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 208 transitions. [2024-11-17 08:47:22,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 156 states and 208 transitions. [2024-11-17 08:47:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:22,744 INFO L425 stractBuchiCegarLoop]: Abstraction has 156 states and 208 transitions. [2024-11-17 08:47:22,744 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:47:22,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 208 transitions. [2024-11-17 08:47:22,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-11-17 08:47:22,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:22,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:22,748 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,748 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] [2024-11-17 08:47:22,748 INFO L745 eck$LassoCheckResult]: Stem: 511#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 407#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 383#L490 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 384#L483 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 498#L498 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 418#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 419#L928 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 361#L271 [2024-11-17 08:47:22,748 INFO L747 eck$LassoCheckResult]: Loop: 361#L271 assume true; 400#L271-1 assume !false; 373#test_while_0_continue#1 assume true; 374#L273 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 375#L281 assume !(0 != test_~tmp~4#1); 377#L289 havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 415#L291 assume !(0 != test_~tmp___0~2#1); 424#L299 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 425#L301 assume 0 != test_~tmp___2~0#1; 491#L314 assume { :begin_inline_timeShift } true; 483#L68-2 assume !(0 != ~pumpRunning~0); 485#L75-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 510#L126-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 508#L100-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 499#L92-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 412#L118-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 413#L144-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 481#L83-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 473#L405-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 474#L337-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 453#L358-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 360#L85-2 assume true;assume { :end_inline_timeShift } true; 361#L271 [2024-11-17 08:47:22,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 2 times [2024-11-17 08:47:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543280485] [2024-11-17 08:47:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:22,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash -222693044, now seen corresponding path program 1 times [2024-11-17 08:47:22,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863070738] [2024-11-17 08:47:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:22,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:22,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863070738] [2024-11-17 08:47:22,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863070738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:22,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:22,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:22,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905837441] [2024-11-17 08:47:22,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:22,793 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:22,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:22,794 INFO L87 Difference]: Start difference. First operand 156 states and 208 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:22,867 INFO L93 Difference]: Finished difference Result 218 states and 280 transitions. [2024-11-17 08:47:22,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 280 transitions. [2024-11-17 08:47:22,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2024-11-17 08:47:22,872 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 218 states and 280 transitions. [2024-11-17 08:47:22,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2024-11-17 08:47:22,873 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2024-11-17 08:47:22,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 280 transitions. [2024-11-17 08:47:22,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:22,876 INFO L218 hiAutomatonCegarLoop]: Abstraction has 218 states and 280 transitions. [2024-11-17 08:47:22,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 280 transitions. [2024-11-17 08:47:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-17 08:47:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.2844036697247707) internal successors, (280), 217 states have internal predecessors, (280), 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) [2024-11-17 08:47:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 280 transitions. [2024-11-17 08:47:22,887 INFO L240 hiAutomatonCegarLoop]: Abstraction has 218 states and 280 transitions. [2024-11-17 08:47:22,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:22,888 INFO L425 stractBuchiCegarLoop]: Abstraction has 218 states and 280 transitions. [2024-11-17 08:47:22,888 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:47:22,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 280 transitions. [2024-11-17 08:47:22,889 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2024-11-17 08:47:22,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:22,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:22,890 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,890 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:22,890 INFO L745 eck$LassoCheckResult]: Stem: 896#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 787#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 763#L490 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 764#L483 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 877#L498 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 799#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 800#L928 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 741#L271 [2024-11-17 08:47:22,890 INFO L747 eck$LassoCheckResult]: Loop: 741#L271 assume true; 780#L271-1 assume !false; 753#test_while_0_continue#1 assume true; 754#L273 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 755#L281 assume !(0 != test_~tmp~4#1); 757#L289 havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 796#L291 assume !(0 != test_~tmp___0~2#1); 805#L299 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 806#L301 assume 0 != test_~tmp___2~0#1; 867#L314 assume { :begin_inline_timeShift } true; 862#L68-2 assume !(0 != ~pumpRunning~0); 863#L75-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 894#L126-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 892#L100-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 783#L445-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 774#L450-5 assume true;isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 775#L228-5 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 811#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 812#L234-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 881#L104-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 820#L92-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 793#L118-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 794#L144-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 859#L83-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 851#L405-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 852#L337-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 829#L358-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 740#L85-2 assume true;assume { :end_inline_timeShift } true; 741#L271 [2024-11-17 08:47:22,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,891 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 3 times [2024-11-17 08:47:22,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031657084] [2024-11-17 08:47:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:22,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:22,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:22,906 INFO L85 PathProgramCache]: Analyzing trace with hash 439925492, now seen corresponding path program 1 times [2024-11-17 08:47:22,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:22,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84818664] [2024-11-17 08:47:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:22,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:22,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84818664] [2024-11-17 08:47:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84818664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:22,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070240070] [2024-11-17 08:47:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:22,954 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:22,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 08:47:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 08:47:22,955 INFO L87 Difference]: Start difference. First operand 218 states and 280 transitions. cyclomatic complexity: 64 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-17 08:47:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:23,017 INFO L93 Difference]: Finished difference Result 230 states and 292 transitions. [2024-11-17 08:47:23,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 230 states and 292 transitions. [2024-11-17 08:47:23,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2024-11-17 08:47:23,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 230 states to 230 states and 292 transitions. [2024-11-17 08:47:23,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 230 [2024-11-17 08:47:23,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 230 [2024-11-17 08:47:23,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 292 transitions. [2024-11-17 08:47:23,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:23,026 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 292 transitions. [2024-11-17 08:47:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 292 transitions. [2024-11-17 08:47:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2024-11-17 08:47:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 230 states have (on average 1.2695652173913043) internal successors, (292), 229 states have internal predecessors, (292), 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) [2024-11-17 08:47:23,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 292 transitions. [2024-11-17 08:47:23,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 230 states and 292 transitions. [2024-11-17 08:47:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 08:47:23,040 INFO L425 stractBuchiCegarLoop]: Abstraction has 230 states and 292 transitions. [2024-11-17 08:47:23,040 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:47:23,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 292 transitions. [2024-11-17 08:47:23,041 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 160 [2024-11-17 08:47:23,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,042 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,043 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,043 INFO L745 eck$LassoCheckResult]: Stem: 1359#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1243#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1220#L490 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1221#L483 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1340#L498 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1255#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1256#L928 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1196#L271 [2024-11-17 08:47:23,043 INFO L747 eck$LassoCheckResult]: Loop: 1196#L271 assume true; 1235#L271-1 assume !false; 1208#test_while_0_continue#1 assume true; 1209#L273 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1210#L281 assume !(0 != test_~tmp~4#1); 1212#L289 havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1252#L291 assume !(0 != test_~tmp___0~2#1); 1261#L299 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1262#L301 assume 0 != test_~tmp___2~0#1; 1330#L314 assume { :begin_inline_timeShift } true; 1322#L68-2 assume !(0 != ~pumpRunning~0); 1323#L75-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1357#L126-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1354#L100-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1238#L445-5 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1239#L450-5 assume true;isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1420#L228-5 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 1268#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1269#L234-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1342#L104-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1278#L92-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1279#L118-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1332#L144-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1355#L83-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1311#L405-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1312#L337-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 1290#L358-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1195#L85-2 assume true;assume { :end_inline_timeShift } true; 1196#L271 [2024-11-17 08:47:23,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 4 times [2024-11-17 08:47:23,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336832814] [2024-11-17 08:47:23,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash -571191758, now seen corresponding path program 1 times [2024-11-17 08:47:23,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614799938] [2024-11-17 08:47:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:23,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:23,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614799938] [2024-11-17 08:47:23,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614799938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:23,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:23,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 08:47:23,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170546811] [2024-11-17 08:47:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:23,093 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:23,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:23,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:23,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:23,094 INFO L87 Difference]: Start difference. First operand 230 states and 292 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-17 08:47:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:23,190 INFO L93 Difference]: Finished difference Result 248 states and 310 transitions. [2024-11-17 08:47:23,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 248 states and 310 transitions. [2024-11-17 08:47:23,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2024-11-17 08:47:23,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 248 states to 248 states and 310 transitions. [2024-11-17 08:47:23,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2024-11-17 08:47:23,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2024-11-17 08:47:23,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 310 transitions. [2024-11-17 08:47:23,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:23,193 INFO L218 hiAutomatonCegarLoop]: Abstraction has 248 states and 310 transitions. [2024-11-17 08:47:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 310 transitions. [2024-11-17 08:47:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2024-11-17 08:47:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.25) internal successors, (310), 247 states have internal predecessors, (310), 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) [2024-11-17 08:47:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 310 transitions. [2024-11-17 08:47:23,202 INFO L240 hiAutomatonCegarLoop]: Abstraction has 248 states and 310 transitions. [2024-11-17 08:47:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:23,203 INFO L425 stractBuchiCegarLoop]: Abstraction has 248 states and 310 transitions. [2024-11-17 08:47:23,204 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-17 08:47:23,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 310 transitions. [2024-11-17 08:47:23,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2024-11-17 08:47:23,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,206 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,206 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,207 INFO L745 eck$LassoCheckResult]: Stem: 1851#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1728#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1706#L490 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1707#L483 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1830#L498 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1740#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1741#L928 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1803#L271 [2024-11-17 08:47:23,207 INFO L747 eck$LassoCheckResult]: Loop: 1803#L271 assume true; 1904#L271-1 assume !false; 1903#test_while_0_continue#1 assume true; 1793#L273 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 1696#L281 assume !(0 != test_~tmp~4#1); 1698#L289 havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 1737#L291 assume !(0 != test_~tmp___0~2#1); 1746#L299 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1747#L301 assume 0 != test_~tmp___2~0#1; 1817#L314 assume { :begin_inline_timeShift } true; 1810#L68-2 assume !(0 != ~pumpRunning~0); 1811#L75-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1849#L126-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1845#L100-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1723#L445-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1714#L450-5 assume true;isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1715#L228-5 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1753#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1754#L234-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1841#L104-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1763#L92-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1764#L118-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1820#L144-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1913#L83-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1912#L405-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 1907#L337-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 1906#L358-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1905#L85-2 assume true;assume { :end_inline_timeShift } true; 1803#L271 [2024-11-17 08:47:23,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 5 times [2024-11-17 08:47:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999619468] [2024-11-17 08:47:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,226 INFO L85 PathProgramCache]: Analyzing trace with hash 310842773, now seen corresponding path program 1 times [2024-11-17 08:47:23,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832460159] [2024-11-17 08:47:23,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1860991318, now seen corresponding path program 1 times [2024-11-17 08:47:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159805827] [2024-11-17 08:47:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:23,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159805827] [2024-11-17 08:47:23,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159805827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:23,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:23,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:23,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682599024] [2024-11-17 08:47:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:23,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:23,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:23,429 INFO L87 Difference]: Start difference. First operand 248 states and 310 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-17 08:47:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:23,477 INFO L93 Difference]: Finished difference Result 489 states and 605 transitions. [2024-11-17 08:47:23,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 489 states and 605 transitions. [2024-11-17 08:47:23,479 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2024-11-17 08:47:23,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 489 states to 489 states and 605 transitions. [2024-11-17 08:47:23,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 489 [2024-11-17 08:47:23,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 489 [2024-11-17 08:47:23,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 489 states and 605 transitions. [2024-11-17 08:47:23,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:23,483 INFO L218 hiAutomatonCegarLoop]: Abstraction has 489 states and 605 transitions. [2024-11-17 08:47:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states and 605 transitions. [2024-11-17 08:47:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-17 08:47:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 489 states have (on average 1.2372188139059306) internal successors, (605), 488 states have internal predecessors, (605), 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) [2024-11-17 08:47:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 605 transitions. [2024-11-17 08:47:23,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 489 states and 605 transitions. [2024-11-17 08:47:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:23,499 INFO L425 stractBuchiCegarLoop]: Abstraction has 489 states and 605 transitions. [2024-11-17 08:47:23,499 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-17 08:47:23,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 489 states and 605 transitions. [2024-11-17 08:47:23,501 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2024-11-17 08:47:23,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,503 INFO L745 eck$LassoCheckResult]: Stem: 2615#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2479#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2457#L490 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2458#L483 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2588#L498 assume true;main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2493#L951 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2494#L928 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2558#L271 [2024-11-17 08:47:23,503 INFO L747 eck$LassoCheckResult]: Loop: 2558#L271 assume true; 2688#L271-1 assume !false; 2685#test_while_0_continue#1 assume true; 2548#L273 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet17#1;test_~tmp~4#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2447#L281 assume !(0 != test_~tmp~4#1); 2449#L289 havoc test_#t~nondet18#1;test_~tmp___0~2#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2489#L291 assume !(0 != test_~tmp___0~2#1); 2576#L299 havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2759#L301 assume 0 != test_~tmp___2~0#1; 2757#L314 assume { :begin_inline_timeShift } true; 2756#L68-2 assume !(0 != ~pumpRunning~0); 2640#L75-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2755#L126-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2736#L100-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2751#L445-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2752#L450-5 assume true;isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 2737#L228-5 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2733#L233-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2730#L234-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2727#L104-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2726#L92-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2724#L118-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2723#L144-2 assume true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 2722#L83-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2717#L405-2 assume true;__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1; 2713#L337-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2710#L437-2 assume true;__utac_acc__Specification3_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 2707#L343-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 2704#L358-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2701#L85-2 assume true;assume { :end_inline_timeShift } true; 2558#L271 [2024-11-17 08:47:23,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash 768307862, now seen corresponding path program 6 times [2024-11-17 08:47:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400550185] [2024-11-17 08:47:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1928290317, now seen corresponding path program 1 times [2024-11-17 08:47:23,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560113055] [2024-11-17 08:47:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1706745912, now seen corresponding path program 1 times [2024-11-17 08:47:23,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750000475] [2024-11-17 08:47:23,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:47:24 BoogieIcfgContainer [2024-11-17 08:47:24,252 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:47:24,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:47:24,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:47:24,253 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:47:24,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:22" (3/4) ... [2024-11-17 08:47:24,258 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:47:24,304 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:47:24,304 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:47:24,304 INFO L158 Benchmark]: Toolchain (without parser) took 3275.46ms. Allocated memory was 167.8MB in the beginning and 253.8MB in the end (delta: 86.0MB). Free memory was 96.1MB in the beginning and 96.5MB in the end (delta: -361.5kB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,304 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:47:24,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.97ms. Allocated memory was 167.8MB in the beginning and 253.8MB in the end (delta: 86.0MB). Free memory was 95.8MB in the beginning and 218.9MB in the end (delta: -123.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 253.8MB. Free memory was 218.9MB in the beginning and 215.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,305 INFO L158 Benchmark]: Boogie Preprocessor took 36.24ms. Allocated memory is still 253.8MB. Free memory was 215.8MB in the beginning and 212.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,305 INFO L158 Benchmark]: IcfgBuilder took 570.61ms. Allocated memory is still 253.8MB. Free memory was 212.6MB in the beginning and 179.1MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,305 INFO L158 Benchmark]: BuchiAutomizer took 2189.25ms. Allocated memory is still 253.8MB. Free memory was 179.1MB in the beginning and 99.6MB in the end (delta: 79.4MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,306 INFO L158 Benchmark]: Witness Printer took 50.94ms. Allocated memory is still 253.8MB. Free memory was 99.6MB in the beginning and 96.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:24,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 120.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.97ms. Allocated memory was 167.8MB in the beginning and 253.8MB in the end (delta: 86.0MB). Free memory was 95.8MB in the beginning and 218.9MB in the end (delta: -123.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 253.8MB. Free memory was 218.9MB in the beginning and 215.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.24ms. Allocated memory is still 253.8MB. Free memory was 215.8MB in the beginning and 212.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 570.61ms. Allocated memory is still 253.8MB. Free memory was 212.6MB in the beginning and 179.1MB in the end (delta: 33.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2189.25ms. Allocated memory is still 253.8MB. Free memory was 179.1MB in the beginning and 99.6MB in the end (delta: 79.4MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * Witness Printer took 50.94ms. Allocated memory is still 253.8MB. Free memory was 99.6MB in the beginning and 96.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 257]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [257] - GenericResultAtLocation [Line: 325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [325] - GenericResultAtLocation [Line: 361]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [361] - GenericResultAtLocation [Line: 464]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [464] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [502] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [868] - GenericResultAtLocation [Line: 964]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [964] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 489 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 525 mSDsluCounter, 3000 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1972 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 1028 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 271]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L672] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L869] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L942] int retValue_acc ; [L943] int tmp ; [L947] FCALL select_helpers() [L948] FCALL select_features() [L949] CALL, EXPR valid_product() [L494] int retValue_acc ; [L497] retValue_acc = 1 [L498] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] RET, EXPR valid_product() [L949] tmp = valid_product() [L951] COND TRUE \read(tmp) [L953] FCALL setup() [L954] CALL runTest() [L936] CALL test() [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L314] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L123] int tmp ; [L126] COND FALSE !(\read(pumpRunning)) [L141] CALL processEnvironment__wrappee__highWaterSensor() [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L102] CALL, EXPR isHighWaterLevel() [L220] int retValue_acc ; [L221] int tmp ; [L222] int tmp___0 ; [L226] CALL, EXPR isHighWaterSensorDry() [L442] int retValue_acc ; [L445] COND TRUE waterLevel < 2 [L446] retValue_acc = 1 [L447] return (retValue_acc); [L226] RET, EXPR isHighWaterSensorDry() [L226] tmp = isHighWaterSensorDry() [L228] COND TRUE \read(tmp) [L229] tmp___0 = 0 [L233] retValue_acc = tmp___0 [L234] return (retValue_acc); [L102] RET, EXPR isHighWaterLevel() [L102] tmp = isHighWaterLevel() [L104] COND FALSE !(\read(tmp)) [L110] FCALL processEnvironment__wrappee__base() [L141] RET processEnvironment__wrappee__highWaterSensor() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification3_spec__1() [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L335] CALL, EXPR isMethaneLevelCritical() [L401] int retValue_acc ; [L404] retValue_acc = methaneLevelCritical [L405] return (retValue_acc); [L335] RET, EXPR isMethaneLevelCritical() [L335] tmp = isMethaneLevelCritical() [L337] COND FALSE !(\read(tmp)) [L341] CALL, EXPR getWaterLevel() [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp___0 = getWaterLevel() [L343] COND FALSE !(tmp___0 == 2) [L83] RET __utac_acc__Specification3_spec__1() [L314] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 271]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L362] int waterLevel = 1; [L363] int methaneLevelCritical = 0; [L672] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L869] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L942] int retValue_acc ; [L943] int tmp ; [L947] FCALL select_helpers() [L948] FCALL select_features() [L949] CALL, EXPR valid_product() [L494] int retValue_acc ; [L497] retValue_acc = 1 [L498] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L949] RET, EXPR valid_product() [L949] tmp = valid_product() [L951] COND TRUE \read(tmp) [L953] FCALL setup() [L954] CALL runTest() [L936] CALL test() [L262] int splverifierCounter ; [L263] int tmp ; [L264] int tmp___0 ; [L265] int tmp___1 ; [L266] int tmp___2 ; [L269] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L271] COND TRUE 1 [L273] COND TRUE splverifierCounter < 4 [L279] tmp = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp)) [L289] tmp___0 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___0)) [L299] tmp___2 = __VERIFIER_nondet_int() [L301] COND TRUE \read(tmp___2) [L314] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L123] int tmp ; [L126] COND FALSE !(\read(pumpRunning)) [L141] CALL processEnvironment__wrappee__highWaterSensor() [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L102] CALL, EXPR isHighWaterLevel() [L220] int retValue_acc ; [L221] int tmp ; [L222] int tmp___0 ; [L226] CALL, EXPR isHighWaterSensorDry() [L442] int retValue_acc ; [L445] COND TRUE waterLevel < 2 [L446] retValue_acc = 1 [L447] return (retValue_acc); [L226] RET, EXPR isHighWaterSensorDry() [L226] tmp = isHighWaterSensorDry() [L228] COND TRUE \read(tmp) [L229] tmp___0 = 0 [L233] retValue_acc = tmp___0 [L234] return (retValue_acc); [L102] RET, EXPR isHighWaterLevel() [L102] tmp = isHighWaterLevel() [L104] COND FALSE !(\read(tmp)) [L110] FCALL processEnvironment__wrappee__base() [L141] RET processEnvironment__wrappee__highWaterSensor() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification3_spec__1() [L329] int tmp ; [L330] int tmp___0 ; [L331] int tmp___1 ; [L335] CALL, EXPR isMethaneLevelCritical() [L401] int retValue_acc ; [L404] retValue_acc = methaneLevelCritical [L405] return (retValue_acc); [L335] RET, EXPR isMethaneLevelCritical() [L335] tmp = isMethaneLevelCritical() [L337] COND FALSE !(\read(tmp)) [L341] CALL, EXPR getWaterLevel() [L433] int retValue_acc ; [L436] retValue_acc = waterLevel [L437] return (retValue_acc); [L341] RET, EXPR getWaterLevel() [L341] tmp___0 = getWaterLevel() [L343] COND FALSE !(tmp___0 == 2) [L83] RET __utac_acc__Specification3_spec__1() [L314] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:47:24,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)