./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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_spec2_product63.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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:14:20,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:14:20,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:14:20,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:14:20,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:14:20,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:14:20,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:14:20,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:14:20,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:14:20,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:14:20,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:14:20,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:14:20,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:14:20,523 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:14:20,526 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:14:20,526 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:14:20,527 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:14:20,527 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:14:20,527 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:14:20,527 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:14:20,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:14:20,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:14:20,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:14:20,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:14:20,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:14:20,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:14:20,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:14:20,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:14:20,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:14:20,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:14:20,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:14:20,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:14:20,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:14:20,534 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:14:20,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:14:20,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:14:20,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:14:20,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:14:20,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:14:20,536 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:14:20,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2024-11-10 23:14:20,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:14:20,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:14:20,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:14:20,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:14:20,822 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:14:20,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-10 23:14:22,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:14:22,597 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:14:22,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-10 23:14:22,617 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2c4168d2/9c0843fe43b546f09544c6b1e958ae39/FLAGf29e21882 [2024-11-10 23:14:22,921 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2c4168d2/9c0843fe43b546f09544c6b1e958ae39 [2024-11-10 23:14:22,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:14:22,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:14:22,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:22,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:14:22,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:14:22,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507c10a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22, skipping insertion in model container [2024-11-10 23:14:22,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:14:23,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:23,305 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:14:23,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2024-11-10 23:14:23,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2024-11-10 23:14:23,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2024-11-10 23:14:23,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:23,429 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:14:23,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23 WrapperNode [2024-11-10 23:14:23,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:23,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:23,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:14:23,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:14:23,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,503 INFO L138 Inliner]: procedures = 59, calls = 108, calls flagged for inlining = 61, calls inlined = 179, statements flattened = 1224 [2024-11-10 23:14:23,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:23,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:14:23,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:14:23,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:14:23,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,554 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]. [2024-11-10 23:14:23,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:14:23,596 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:14:23,597 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:14:23,597 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:14:23,599 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (1/1) ... [2024-11-10 23:14:23,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:14:23,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:14:23,639 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) [2024-11-10 23:14:23,642 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 [2024-11-10 23:14:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:14:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:14:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:14:23,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:14:23,787 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:14:23,789 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:14:24,651 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,652 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,652 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,652 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,652 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-13: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-15: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-17: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-19: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,653 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-21: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,654 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L301-23: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; [2024-11-10 23:14:24,654 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,654 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,655 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,655 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,655 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,656 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,656 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-13: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,656 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-15: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-17: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-19: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-21: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-23: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,657 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-19: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-21: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-23: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-25: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-27: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,658 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L670-1: valid_product_#res#1 := valid_product_~retValue_acc~10#1; [2024-11-10 23:14:24,659 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L537-29: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-10 23:14:24,659 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,659 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,659 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,660 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,660 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,660 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L310-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~4#1; [2024-11-10 23:14:24,660 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L546-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-10 23:14:24,660 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L546-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L546-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L152-1: main_#res#1 := main_~retValue_acc~0#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,661 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,662 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,662 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,662 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,662 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,663 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-25: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,664 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-27: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-29: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-31: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-33: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,665 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L255-35: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; [2024-11-10 23:14:24,666 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,667 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~8#1; [2024-11-10 23:14:24,740 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-11-10 23:14:24,740 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:14:24,768 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:14:24,768 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:14:24,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:24 BoogieIcfgContainer [2024-11-10 23:14:24,769 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:14:24,770 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:14:24,770 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:14:24,774 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:14:24,775 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:24,775 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:14:22" (1/3) ... [2024-11-10 23:14:24,776 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49a36b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:24, skipping insertion in model container [2024-11-10 23:14:24,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:24,776 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:23" (2/3) ... [2024-11-10 23:14:24,776 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49a36b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:24, skipping insertion in model container [2024-11-10 23:14:24,776 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:24,777 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:24" (3/3) ... [2024-11-10 23:14:24,778 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2024-11-10 23:14:24,840 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:14:24,840 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:14:24,840 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:14:24,840 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:14:24,840 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:14:24,840 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:14:24,841 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:14:24,841 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:14:24,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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) [2024-11-10 23:14:24,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2024-11-10 23:14:24,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:24,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:24,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,886 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,886 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:14:24,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 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) [2024-11-10 23:14:24,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2024-11-10 23:14:24,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:24,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:24,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,906 INFO L745 eck$LassoCheckResult]: Stem: 316#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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 36#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 137#L661true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 136#L654true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 139#L669true assume true;main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 122#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 310#L113true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 72#L173true assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 245#L325true [2024-11-10 23:14:24,907 INFO L747 eck$LassoCheckResult]: Loop: 245#L325true assume true; 304#L325-1true assume !false;assume true; 185#L327true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 27#L335true assume !(0 != test_~tmp~2#1); 284#L343true havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 150#L345true assume !(0 != test_~tmp___0~1#1); 120#L353true havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 202#L355true assume 0 != test_~tmp___2~0#1; 6#L370true assume { :begin_inline_timeShift } true; 3#L391-2true assume !(0 != ~pumpRunning~0); 191#L398-2true assume !(0 != ~systemActive~0); 91#L406-2true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 276#L254-12true assume true;__utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 266#L184-2true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 132#L202-2true assume true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 104#L408-2true assume true;assume { :end_inline_timeShift } true; 245#L325true [2024-11-10 23:14:24,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1095504998, now seen corresponding path program 1 times [2024-11-10 23:14:24,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496829077] [2024-11-10 23:14:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:25,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,067 INFO L85 PathProgramCache]: Analyzing trace with hash 559641349, now seen corresponding path program 1 times [2024-11-10 23:14:25,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114168918] [2024-11-10 23:14:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:25,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1046416542, now seen corresponding path program 1 times [2024-11-10 23:14:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385580831] [2024-11-10 23:14:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:25,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385580831] [2024-11-10 23:14:25,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385580831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:25,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:25,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 23:14:25,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936899112] [2024-11-10 23:14:25,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:14:25,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:14:25,427 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2024-11-10 23:14:25,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:25,522 INFO L93 Difference]: Finished difference Result 637 states and 849 transitions. [2024-11-10 23:14:25,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 637 states and 849 transitions. [2024-11-10 23:14:25,535 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 414 [2024-11-10 23:14:25,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 637 states to 615 states and 826 transitions. [2024-11-10 23:14:25,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 615 [2024-11-10 23:14:25,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 615 [2024-11-10 23:14:25,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 615 states and 826 transitions. [2024-11-10 23:14:25,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:25,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 615 states and 826 transitions. [2024-11-10 23:14:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states and 826 transitions. [2024-11-10 23:14:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 612. [2024-11-10 23:14:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 612 states have (on average 1.3431372549019607) internal successors, (822), 611 states have internal predecessors, (822), 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) [2024-11-10 23:14:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 822 transitions. [2024-11-10 23:14:25,621 INFO L240 hiAutomatonCegarLoop]: Abstraction has 612 states and 822 transitions. [2024-11-10 23:14:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 23:14:25,627 INFO L425 stractBuchiCegarLoop]: Abstraction has 612 states and 822 transitions. [2024-11-10 23:14:25,627 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:14:25,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 612 states and 822 transitions. [2024-11-10 23:14:25,633 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 414 [2024-11-10 23:14:25,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:25,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:25,634 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:25,637 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] [2024-11-10 23:14:25,637 INFO L745 eck$LassoCheckResult]: Stem: 1306#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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1043#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1044#L661 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1187#L654 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1188#L669 assume true;main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1171#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1172#L113 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1104#L173 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1105#L325 [2024-11-10 23:14:25,638 INFO L747 eck$LassoCheckResult]: Loop: 1105#L325 assume true; 1356#L325-1 assume !false;assume true; 1352#L327 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1353#L335 assume !(0 != test_~tmp~2#1); 1467#L343 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1464#L345 assume !(0 != test_~tmp___0~1#1); 1463#L353 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1462#L355 assume 0 != test_~tmp___2~0#1; 1460#L370 assume { :begin_inline_timeShift } true; 1457#L391-2 assume !(0 != ~pumpRunning~0); 1454#L398-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1451#L475-2 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1449#L254-15 assume true;isMethaneAlarm_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret20#1;havoc isMethaneAlarm_#t~ret20#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 1447#L536-12 assume true;processEnvironment_#t~ret18#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret18#1;havoc processEnvironment_#t~ret18#1; 1445#L479-2 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1430#L526-6 assume true;assume { :end_inline_deactivatePump } true; 1428#L493-2 assume true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1427#L406-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1426#L254-12 assume true;__utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 1422#L184-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1360#L202-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1359#L408-2 assume true;assume { :end_inline_timeShift } true; 1105#L325 [2024-11-10 23:14:25,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1095504998, now seen corresponding path program 2 times [2024-11-10 23:14:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923189224] [2024-11-10 23:14:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:25,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1358125683, now seen corresponding path program 1 times [2024-11-10 23:14:25,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236523595] [2024-11-10 23:14:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:25,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:25,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236523595] [2024-11-10 23:14:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236523595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:25,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:14:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097670933] [2024-11-10 23:14:25,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:25,697 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:25,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:14:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:14:25,697 INFO L87 Difference]: Start difference. First operand 612 states and 822 transitions. cyclomatic complexity: 214 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) [2024-11-10 23:14:25,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:25,820 INFO L93 Difference]: Finished difference Result 631 states and 810 transitions. [2024-11-10 23:14:25,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 631 states and 810 transitions. [2024-11-10 23:14:25,824 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 437 [2024-11-10 23:14:25,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 631 states to 631 states and 810 transitions. [2024-11-10 23:14:25,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 631 [2024-11-10 23:14:25,829 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 631 [2024-11-10 23:14:25,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 631 states and 810 transitions. [2024-11-10 23:14:25,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:25,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 631 states and 810 transitions. [2024-11-10 23:14:25,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states and 810 transitions. [2024-11-10 23:14:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2024-11-10 23:14:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 631 states have (on average 1.2836767036450079) internal successors, (810), 630 states have internal predecessors, (810), 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) [2024-11-10 23:14:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 810 transitions. [2024-11-10 23:14:25,858 INFO L240 hiAutomatonCegarLoop]: Abstraction has 631 states and 810 transitions. [2024-11-10 23:14:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 23:14:25,860 INFO L425 stractBuchiCegarLoop]: Abstraction has 631 states and 810 transitions. [2024-11-10 23:14:25,860 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:14:25,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 631 states and 810 transitions. [2024-11-10 23:14:25,888 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 437 [2024-11-10 23:14:25,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:25,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:25,889 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:25,889 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] [2024-11-10 23:14:25,889 INFO L745 eck$LassoCheckResult]: Stem: 2507#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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2279#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2280#L661 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2396#L654 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2397#L669 assume true;main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2386#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2387#L113 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2327#L173 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2328#L325 [2024-11-10 23:14:25,890 INFO L747 eck$LassoCheckResult]: Loop: 2328#L325 assume true; 2763#L325-1 assume !false;assume true; 2762#L327 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 2524#L335 assume !(0 != test_~tmp~2#1); 2501#L343 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 2409#L345 assume !(0 != test_~tmp___0~1#1); 2337#L353 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 2384#L355 assume 0 != test_~tmp___2~0#1; 2232#L370 assume { :begin_inline_timeShift } true; 2228#L391-2 assume !(0 != ~pumpRunning~0); 2229#L398-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2439#L475-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 2823#L449-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 2822#L423-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 2821#L294-11 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 2820#L299-11 assume true;isHighWaterLevel_#t~ret29#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret29#1;havoc isHighWaterLevel_#t~ret29#1; 2819#L594-11 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2818#L599-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2817#L600-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 2814#L427-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2804#L415-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2802#L441-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2773#L467-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2772#L493-2 assume true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2771#L406-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 2770#L254-12 assume true;__utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 2766#L184-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 2765#L202-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2764#L408-2 assume true;assume { :end_inline_timeShift } true; 2328#L325 [2024-11-10 23:14:25,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1095504998, now seen corresponding path program 3 times [2024-11-10 23:14:25,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105058385] [2024-11-10 23:14:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash -613819911, now seen corresponding path program 1 times [2024-11-10 23:14:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:25,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613110086] [2024-11-10 23:14:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:26,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:26,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613110086] [2024-11-10 23:14:26,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613110086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:26,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:26,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 23:14:26,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131269272] [2024-11-10 23:14:26,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:26,002 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:26,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:26,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 23:14:26,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 23:14:26,003 INFO L87 Difference]: Start difference. First operand 631 states and 810 transitions. cyclomatic complexity: 183 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-10 23:14:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:26,135 INFO L93 Difference]: Finished difference Result 667 states and 846 transitions. [2024-11-10 23:14:26,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 667 states and 846 transitions. [2024-11-10 23:14:26,140 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2024-11-10 23:14:26,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 667 states to 667 states and 846 transitions. [2024-11-10 23:14:26,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 667 [2024-11-10 23:14:26,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 667 [2024-11-10 23:14:26,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 667 states and 846 transitions. [2024-11-10 23:14:26,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:26,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 667 states and 846 transitions. [2024-11-10 23:14:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states and 846 transitions. [2024-11-10 23:14:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 667. [2024-11-10 23:14:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 667 states have (on average 1.2683658170914542) internal successors, (846), 666 states have internal predecessors, (846), 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) [2024-11-10 23:14:26,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 846 transitions. [2024-11-10 23:14:26,162 INFO L240 hiAutomatonCegarLoop]: Abstraction has 667 states and 846 transitions. [2024-11-10 23:14:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 23:14:26,164 INFO L425 stractBuchiCegarLoop]: Abstraction has 667 states and 846 transitions. [2024-11-10 23:14:26,164 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 23:14:26,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 667 states and 846 transitions. [2024-11-10 23:14:26,168 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2024-11-10 23:14:26,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:26,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:26,169 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:26,169 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] [2024-11-10 23:14:26,169 INFO L745 eck$LassoCheckResult]: Stem: 3826#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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3584#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 3585#L661 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3706#L654 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3707#L669 assume true;main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 3695#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3696#L113 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3635#L173 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3636#L325 [2024-11-10 23:14:26,170 INFO L747 eck$LassoCheckResult]: Loop: 3636#L325 assume true; 3822#L325-1 assume !false;assume true; 3746#L327 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 3567#L335 assume !(0 != test_~tmp~2#1); 3569#L343 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 3721#L345 assume !(0 != test_~tmp___0~1#1); 3646#L353 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 3693#L355 assume 0 != test_~tmp___2~0#1; 3537#L370 assume { :begin_inline_timeShift } true; 3533#L391-2 assume !(0 != ~pumpRunning~0); 3534#L398-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3750#L475-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 3995#L449-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 4003#L423-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 3767#L294-11 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~3#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 3768#L299-11 assume true;isHighWaterLevel_#t~ret29#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret29#1;havoc isHighWaterLevel_#t~ret29#1; 3825#L594-11 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~2#1 := 1; 3821#L599-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3777#L600-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 3778#L427-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3946#L415-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 3944#L441-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3941#L467-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3940#L493-2 assume true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 3939#L406-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 3938#L254-12 assume true;__utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 3931#L184-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 3930#L202-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3680#L408-2 assume true;assume { :end_inline_timeShift } true; 3636#L325 [2024-11-10 23:14:26,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:26,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1095504998, now seen corresponding path program 4 times [2024-11-10 23:14:26,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:26,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662264863] [2024-11-10 23:14:26,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:26,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:26,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:26,190 INFO L85 PathProgramCache]: Analyzing trace with hash -907222918, now seen corresponding path program 1 times [2024-11-10 23:14:26,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:26,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095946229] [2024-11-10 23:14:26,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:26,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:26,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:26,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095946229] [2024-11-10 23:14:26,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095946229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:26,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:26,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:14:26,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484752797] [2024-11-10 23:14:26,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:26,247 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:26,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:26,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:14:26,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:14:26,248 INFO L87 Difference]: Start difference. First operand 667 states and 846 transitions. cyclomatic complexity: 183 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2024-11-10 23:14:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:26,432 INFO L93 Difference]: Finished difference Result 721 states and 900 transitions. [2024-11-10 23:14:26,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 721 states and 900 transitions. [2024-11-10 23:14:26,436 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 497 [2024-11-10 23:14:26,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 721 states to 721 states and 900 transitions. [2024-11-10 23:14:26,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 721 [2024-11-10 23:14:26,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 721 [2024-11-10 23:14:26,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 721 states and 900 transitions. [2024-11-10 23:14:26,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:26,442 INFO L218 hiAutomatonCegarLoop]: Abstraction has 721 states and 900 transitions. [2024-11-10 23:14:26,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states and 900 transitions. [2024-11-10 23:14:26,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-10 23:14:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 721 states have (on average 1.248266296809986) internal successors, (900), 720 states have internal predecessors, (900), 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) [2024-11-10 23:14:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 900 transitions. [2024-11-10 23:14:26,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 721 states and 900 transitions. [2024-11-10 23:14:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 23:14:26,455 INFO L425 stractBuchiCegarLoop]: Abstraction has 721 states and 900 transitions. [2024-11-10 23:14:26,455 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 23:14:26,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 721 states and 900 transitions. [2024-11-10 23:14:26,458 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 497 [2024-11-10 23:14:26,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:26,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:26,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:26,459 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] [2024-11-10 23:14:26,460 INFO L745 eck$LassoCheckResult]: Stem: 5222#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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 4979#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 4980#L661 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5100#L654 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 5101#L669 assume true;main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 5089#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 5090#L113 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 5031#L173 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5032#L325 [2024-11-10 23:14:26,460 INFO L747 eck$LassoCheckResult]: Loop: 5032#L325 assume true; 5509#L325-1 assume !false;assume true; 5508#L327 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 5506#L335 assume !(0 != test_~tmp~2#1); 5504#L343 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 5501#L345 assume !(0 != test_~tmp___0~1#1); 5500#L353 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 5499#L355 assume 0 != test_~tmp___2~0#1; 4933#L370 assume { :begin_inline_timeShift } true; 4929#L391-2 assume !(0 != ~pumpRunning~0); 4930#L398-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 5146#L475-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 5154#L449-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 5104#L423-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 5105#L294-11 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 5167#L299-11 assume true;isHighWaterLevel_#t~ret29#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret29#1;havoc isHighWaterLevel_#t~ret29#1; 5616#L594-11 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 5615#L599-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 5614#L600-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 5494#L427-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5119#L415-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 5120#L441-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5019#L467-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5020#L493-2 assume true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 5185#L406-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 5209#L254-12 assume true;__utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 5210#L184-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 5097#L202-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 5073#L408-2 assume true;assume { :end_inline_timeShift } true; 5032#L325 [2024-11-10 23:14:26,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1095504998, now seen corresponding path program 5 times [2024-11-10 23:14:26,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:26,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360749265] [2024-11-10 23:14:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:26,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:26,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 666043767, now seen corresponding path program 1 times [2024-11-10 23:14:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:26,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109480669] [2024-11-10 23:14:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,514 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:26,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:26,515 INFO L85 PathProgramCache]: Analyzing trace with hash 312315006, now seen corresponding path program 1 times [2024-11-10 23:14:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:26,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767980102] [2024-11-10 23:14:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:26,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:26,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:27,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:27,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:14:27 BoogieIcfgContainer [2024-11-10 23:14:27,500 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:14:27,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:14:27,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:14:27,501 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:14:27,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:24" (3/4) ... [2024-11-10 23:14:27,503 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 23:14:27,573 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 23:14:27,574 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:14:27,574 INFO L158 Benchmark]: Toolchain (without parser) took 4650.01ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 89.6MB in the beginning and 153.0MB in the end (delta: -63.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:14:27,575 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:14:27,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.44ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 113.1MB in the end (delta: -23.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.81ms. Allocated memory is still 159.4MB. Free memory was 112.3MB in the beginning and 107.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,578 INFO L158 Benchmark]: Boogie Preprocessor took 88.80ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 102.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,579 INFO L158 Benchmark]: IcfgBuilder took 1172.67ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 123.7MB in the end (delta: -21.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,579 INFO L158 Benchmark]: BuchiAutomizer took 2730.22ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 123.7MB in the beginning and 156.2MB in the end (delta: -32.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,579 INFO L158 Benchmark]: Witness Printer took 73.16ms. Allocated memory is still 197.1MB. Free memory was 156.2MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:27,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.44ms. Allocated memory is still 159.4MB. Free memory was 89.4MB in the beginning and 113.1MB in the end (delta: -23.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.81ms. Allocated memory is still 159.4MB. Free memory was 112.3MB in the beginning and 107.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.80ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 102.6MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 1172.67ms. Allocated memory is still 159.4MB. Free memory was 102.6MB in the beginning and 123.7MB in the end (delta: -21.1MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2730.22ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 123.7MB in the beginning and 156.2MB in the end (delta: -32.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 73.16ms. Allocated memory is still 197.1MB. Free memory was 156.2MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] - GenericResultAtLocation [Line: 205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] - GenericResultAtLocation [Line: 673]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 721 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 643 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 3309 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1939 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 352 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1370 mSDtfsCounter, 352 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L172] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L370] CALL timeShift() [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L400] CALL processEnvironment() [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L490] CALL processEnvironment__wrappee__methaneQuery() [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L464] CALL processEnvironment__wrappee__highWaterSensor() [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L425] CALL, EXPR isHighWaterLevel() [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L592] CALL, EXPR isHighWaterSensorDry() [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] RET, EXPR isHighWaterSensorDry() [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] RET, EXPR isHighWaterLevel() [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L433] FCALL processEnvironment__wrappee__base() [L464] RET processEnvironment__wrappee__highWaterSensor() [L490] RET processEnvironment__wrappee__methaneQuery() [L400] RET processEnvironment() [L406] CALL __utac_acc__Specification2_spec__2() [L177] int tmp ; [L178] int tmp___0 ; [L182] CALL, EXPR isMethaneLevelCritical() [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] RET, EXPR isMethaneLevelCritical() [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 [L406] RET __utac_acc__Specification2_spec__2() [L370] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 325]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L172] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L370] CALL timeShift() [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L400] CALL processEnvironment() [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L490] CALL processEnvironment__wrappee__methaneQuery() [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L464] CALL processEnvironment__wrappee__highWaterSensor() [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L425] CALL, EXPR isHighWaterLevel() [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L592] CALL, EXPR isHighWaterSensorDry() [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] RET, EXPR isHighWaterSensorDry() [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] RET, EXPR isHighWaterLevel() [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L433] FCALL processEnvironment__wrappee__base() [L464] RET processEnvironment__wrappee__highWaterSensor() [L490] RET processEnvironment__wrappee__methaneQuery() [L400] RET processEnvironment() [L406] CALL __utac_acc__Specification2_spec__2() [L177] int tmp ; [L178] int tmp___0 ; [L182] CALL, EXPR isMethaneLevelCritical() [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] RET, EXPR isMethaneLevelCritical() [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 [L406] RET __utac_acc__Specification2_spec__2() [L370] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 23:14:27,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)