./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:47:19,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:47:19,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:47:19,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:47:19,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:47:19,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:47:19,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:47:19,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:47:19,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:47:19,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:47:19,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:47:19,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:47:19,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:47:19,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:47:19,774 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:47:19,774 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:47:19,774 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:47:19,774 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:47:19,775 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:47:19,775 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:47:19,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:47:19,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:47:19,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:47:19,778 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:47:19,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:47:19,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:47:19,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:47:19,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:47:19,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:47:19,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:47:19,779 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:47:19,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:47:19,780 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:47:19,780 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:47:19,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:47:19,781 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:47:19,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:47:19,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:47:19,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:47:19,783 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:47:19,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2024-11-17 08:47:20,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:47:20,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:47:20,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:47:20,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:47:20,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:47:20,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-17 08:47:21,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:47:21,710 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:47:21,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-17 08:47:21,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97c332951/2b9dad2e708c4339996a399db792548c/FLAGdb34b68d7 [2024-11-17 08:47:21,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97c332951/2b9dad2e708c4339996a399db792548c [2024-11-17 08:47:21,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:47:21,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:47:21,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:21,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:47:21,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:47:21,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5969a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:21, skipping insertion in model container [2024-11-17 08:47:21,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:21" (1/1) ... [2024-11-17 08:47:21,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:47:22,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:22,131 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:47:22,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-17 08:47:22,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-17 08:47:22,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] [2024-11-17 08:47:22,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] [2024-11-17 08:47:22,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] [2024-11-17 08:47:22,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] [2024-11-17 08:47:22,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] [2024-11-17 08:47:22,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2024-11-17 08:47:22,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:22,244 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:47:22,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22 WrapperNode [2024-11-17 08:47:22,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:22,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:22,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:47:22,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:47:22,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,324 INFO L138 Inliner]: procedures = 56, calls = 104, calls flagged for inlining = 57, calls inlined = 104, statements flattened = 698 [2024-11-17 08:47:22,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:22,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:47:22,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:47:22,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:47:22,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,362 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 08:47:22,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:47:22,392 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:47:22,392 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:47:22,392 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:47:22,395 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (1/1) ... [2024-11-17 08:47:22,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:47:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:47:22,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-17 08:47:22,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-17 08:47:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:47:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:47:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:47:22,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:47:22,588 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:47:22,591 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:47:23,185 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,186 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L366-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L375-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L375-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L375-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L215-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L215-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:23,187 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L215-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,188 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L183-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L550-1: main_#res#1 := main_~retValue_acc~8#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L93-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L229-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,190 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,191 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L430-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:47:23,231 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2024-11-17 08:47:23,231 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:47:23,252 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:47:23,254 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:47:23,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:23 BoogieIcfgContainer [2024-11-17 08:47:23,254 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:47:23,255 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:47:23,256 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:47:23,259 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:47:23,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:23,259 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:47:21" (1/3) ... [2024-11-17 08:47:23,260 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3038d932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:23, skipping insertion in model container [2024-11-17 08:47:23,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:23,260 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:22" (2/3) ... [2024-11-17 08:47:23,260 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3038d932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:23, skipping insertion in model container [2024-11-17 08:47:23,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:23,261 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:23" (3/3) ... [2024-11-17 08:47:23,262 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2024-11-17 08:47:23,315 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:47:23,316 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:47:23,316 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:47:23,316 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:47:23,316 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:47:23,317 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:47:23,317 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:47:23,317 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:47:23,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:23,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-17 08:47:23,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,365 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,366 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,366 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:47:23,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:23,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-11-17 08:47:23,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,393 INFO L745 eck$LassoCheckResult]: Stem: 182#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 26#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 88#L84true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 154#L77true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 87#L92true assume true;main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 117#L540true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 160#L516true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 14#L564true [2024-11-17 08:47:23,394 INFO L747 eck$LassoCheckResult]: Loop: 14#L564true assume true; 152#L564-1true assume !false; 47#test_while_1_continue#1true assume true; 84#L566true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 38#L574true assume !(0 != test_~tmp~6#1); 191#L582true havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 136#L584true assume !(0 != test_~tmp___0~2#1); 16#L592true havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 170#L594true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 128#L453true assume true;assume { :end_inline_startSystem } true; 130#L611true assume { :begin_inline_timeShift } true; 111#L246-2true assume !(0 != ~pumpRunning~0); 187#L253-2true assume !(0 != ~systemActive~0); 40#L261-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 39#L182-8true assume true;__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 93#L109-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 137#L130-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 165#L263-2true assume true;assume { :end_inline_timeShift } true; 14#L564true [2024-11-17 08:47:23,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1920895010, now seen corresponding path program 1 times [2024-11-17 08:47:23,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715928724] [2024-11-17 08:47:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 141830991, now seen corresponding path program 1 times [2024-11-17 08:47:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854278110] [2024-11-17 08:47:23,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:23,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:23,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:23,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854278110] [2024-11-17 08:47:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854278110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:23,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:23,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810760611] [2024-11-17 08:47:23,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:23,665 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:23,706 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 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 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:23,775 INFO L93 Difference]: Finished difference Result 371 states and 487 transitions. [2024-11-17 08:47:23,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 487 transitions. [2024-11-17 08:47:23,794 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 242 [2024-11-17 08:47:23,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 349 states and 464 transitions. [2024-11-17 08:47:23,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 349 [2024-11-17 08:47:23,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 349 [2024-11-17 08:47:23,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 349 states and 464 transitions. [2024-11-17 08:47:23,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:23,811 INFO L218 hiAutomatonCegarLoop]: Abstraction has 349 states and 464 transitions. [2024-11-17 08:47:23,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states and 464 transitions. [2024-11-17 08:47:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2024-11-17 08:47:23,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 346 states have (on average 1.329479768786127) internal successors, (460), 345 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 460 transitions. [2024-11-17 08:47:23,858 INFO L240 hiAutomatonCegarLoop]: Abstraction has 346 states and 460 transitions. [2024-11-17 08:47:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:23,864 INFO L425 stractBuchiCegarLoop]: Abstraction has 346 states and 460 transitions. [2024-11-17 08:47:23,864 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:47:23,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 346 states and 460 transitions. [2024-11-17 08:47:23,867 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2024-11-17 08:47:23,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:23,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:23,868 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:23,868 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] [2024-11-17 08:47:23,869 INFO L745 eck$LassoCheckResult]: Stem: 784#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 652#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 653#L84 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 737#L77 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 738#L92 assume true;main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 647#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 648#L516 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 618#L564 [2024-11-17 08:47:23,869 INFO L747 eck$LassoCheckResult]: Loop: 618#L564 assume true; 619#L564-1 assume !false; 731#test_while_1_continue#1 assume true; 776#L566 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 687#L574 assume !(0 != test_~tmp~6#1); 660#L582 havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 704#L584 assume !(0 != test_~tmp___0~2#1); 623#L592 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 624#L594 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 611#L602 assume !(0 != test_~tmp___1~1#1); 612#L611 assume { :begin_inline_timeShift } true; 620#L246-2 assume !(0 != ~pumpRunning~0); 622#L253-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 756#L304-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 757#L278-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 779#L270-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 591#L296-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 592#L322-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 691#L261-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 688#L182-8 assume true;__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 689#L109-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 804#L130-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 758#L263-2 assume true;assume { :end_inline_timeShift } true; 618#L564 [2024-11-17 08:47:23,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1920895010, now seen corresponding path program 2 times [2024-11-17 08:47:23,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167517356] [2024-11-17 08:47:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:23,906 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:23,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:23,907 INFO L85 PathProgramCache]: Analyzing trace with hash -77716781, now seen corresponding path program 1 times [2024-11-17 08:47:23,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:23,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028941989] [2024-11-17 08:47:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:23,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028941989] [2024-11-17 08:47:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028941989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:23,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:23,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:23,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220195109] [2024-11-17 08:47:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:23,956 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:23,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:23,957 INFO L87 Difference]: Start difference. First operand 346 states and 460 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:24,077 INFO L93 Difference]: Finished difference Result 484 states and 621 transitions. [2024-11-17 08:47:24,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 484 states and 621 transitions. [2024-11-17 08:47:24,082 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 343 [2024-11-17 08:47:24,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 484 states to 484 states and 621 transitions. [2024-11-17 08:47:24,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 484 [2024-11-17 08:47:24,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 484 [2024-11-17 08:47:24,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 484 states and 621 transitions. [2024-11-17 08:47:24,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:24,090 INFO L218 hiAutomatonCegarLoop]: Abstraction has 484 states and 621 transitions. [2024-11-17 08:47:24,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states and 621 transitions. [2024-11-17 08:47:24,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2024-11-17 08:47:24,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 484 states have (on average 1.2830578512396693) internal successors, (621), 483 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2024-11-17 08:47:24,109 INFO L240 hiAutomatonCegarLoop]: Abstraction has 484 states and 621 transitions. [2024-11-17 08:47:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:24,110 INFO L425 stractBuchiCegarLoop]: Abstraction has 484 states and 621 transitions. [2024-11-17 08:47:24,110 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:47:24,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 484 states and 621 transitions. [2024-11-17 08:47:24,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 343 [2024-11-17 08:47:24,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:24,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:24,114 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:24,114 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] [2024-11-17 08:47:24,115 INFO L745 eck$LassoCheckResult]: Stem: 1634#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1488#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1489#L84 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1580#L77 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1581#L92 assume true;main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1483#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1484#L516 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1588#L564 [2024-11-17 08:47:24,115 INFO L747 eck$LassoCheckResult]: Loop: 1588#L564 assume true; 1835#L564-1 assume !false; 1834#test_while_1_continue#1 assume true; 1832#L566 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1830#L574 assume !(0 != test_~tmp~6#1); 1828#L582 havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1826#L584 assume !(0 != test_~tmp___0~2#1); 1824#L592 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1823#L594 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1511#L453 assume true;assume { :end_inline_startSystem } true; 1512#L611 assume { :begin_inline_timeShift } true; 1821#L246-2 assume !(0 != ~pumpRunning~0); 1797#L253-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1820#L304-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1682#L278-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1819#L222-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1818#L227-5 assume true;isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1817#L423-5 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1816#L428-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1815#L429-5 assume true;processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 1813#L282-5 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1814#L270-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1846#L296-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1845#L322-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1844#L261-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1843#L182-8 assume true;__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 1840#L109-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1837#L130-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1836#L263-2 assume true;assume { :end_inline_timeShift } true; 1588#L564 [2024-11-17 08:47:24,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1920895010, now seen corresponding path program 3 times [2024-11-17 08:47:24,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515934882] [2024-11-17 08:47:24,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:24,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1222688605, now seen corresponding path program 1 times [2024-11-17 08:47:24,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682847963] [2024-11-17 08:47:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:24,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,161 INFO L85 PathProgramCache]: Analyzing trace with hash 802607264, now seen corresponding path program 1 times [2024-11-17 08:47:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177334976] [2024-11-17 08:47:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:24,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:47:24,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177334976] [2024-11-17 08:47:24,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177334976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:24,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:24,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:24,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731532618] [2024-11-17 08:47:24,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:24,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:24,454 INFO L87 Difference]: Start difference. First operand 484 states and 621 transitions. cyclomatic complexity: 140 Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:24,587 INFO L93 Difference]: Finished difference Result 961 states and 1219 transitions. [2024-11-17 08:47:24,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 961 states and 1219 transitions. [2024-11-17 08:47:24,594 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 686 [2024-11-17 08:47:24,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 961 states to 961 states and 1219 transitions. [2024-11-17 08:47:24,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2024-11-17 08:47:24,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2024-11-17 08:47:24,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1219 transitions. [2024-11-17 08:47:24,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:24,604 INFO L218 hiAutomatonCegarLoop]: Abstraction has 961 states and 1219 transitions. [2024-11-17 08:47:24,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1219 transitions. [2024-11-17 08:47:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2024-11-17 08:47:24,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 961 states have (on average 1.2684703433922997) internal successors, (1219), 960 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:24,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1219 transitions. [2024-11-17 08:47:24,629 INFO L240 hiAutomatonCegarLoop]: Abstraction has 961 states and 1219 transitions. [2024-11-17 08:47:24,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:24,630 INFO L425 stractBuchiCegarLoop]: Abstraction has 961 states and 1219 transitions. [2024-11-17 08:47:24,631 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:47:24,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 961 states and 1219 transitions. [2024-11-17 08:47:24,635 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 686 [2024-11-17 08:47:24,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:24,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:24,636 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:24,636 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:24,636 INFO L745 eck$LassoCheckResult]: Stem: 3079#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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2947#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 2948#L84 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3032#L77 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3033#L92 assume true;main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 2940#L540 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 2941#L516 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3040#L564 [2024-11-17 08:47:24,636 INFO L747 eck$LassoCheckResult]: Loop: 3040#L564 assume true; 3163#L564-1 assume !false; 3149#test_while_1_continue#1 assume true; 3150#L566 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3119#L574 assume !(0 != test_~tmp~6#1); 3118#L582 havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3111#L584 assume !(0 != test_~tmp___0~2#1); 3107#L592 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3064#L594 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2906#L602 assume !(0 != test_~tmp___1~1#1); 2907#L611 assume { :begin_inline_timeShift } true; 2913#L246-2 assume !(0 != ~pumpRunning~0); 2914#L253-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3054#L304-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2988#L278-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2971#L222-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2968#L227-5 assume true;isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2969#L423-5 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3069#L428-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3391#L429-5 assume true;processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1; 3390#L282-5 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2965#L270-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2885#L296-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2886#L322-2 assume true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 3025#L261-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3411#L182-8 assume true;__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 3410#L109-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 3409#L214-2 assume true;__utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 3404#L115-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3402#L130-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3399#L263-2 assume true;assume { :end_inline_timeShift } true; 3040#L564 [2024-11-17 08:47:24,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1920895010, now seen corresponding path program 4 times [2024-11-17 08:47:24,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543864108] [2024-11-17 08:47:24,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:24,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1096154714, now seen corresponding path program 1 times [2024-11-17 08:47:24,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666706872] [2024-11-17 08:47:24,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:24,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:24,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1124911837, now seen corresponding path program 1 times [2024-11-17 08:47:24,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:24,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088709985] [2024-11-17 08:47:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:24,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:24,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:25,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:25,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:47:25 BoogieIcfgContainer [2024-11-17 08:47:25,657 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:47:25,657 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:47:25,657 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:47:25,658 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:47:25,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:23" (3/4) ... [2024-11-17 08:47:25,660 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:47:25,723 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:47:25,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:47:25,724 INFO L158 Benchmark]: Toolchain (without parser) took 3980.03ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 100.4MB in the beginning and 83.2MB in the end (delta: 17.2MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,724 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:47:25,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.76ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 78.2MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.84ms. Allocated memory is still 159.4MB. Free memory was 78.2MB in the beginning and 74.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,725 INFO L158 Benchmark]: Boogie Preprocessor took 65.40ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 71.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,725 INFO L158 Benchmark]: IcfgBuilder took 862.39ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 71.1MB in the beginning and 179.5MB in the end (delta: -108.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,726 INFO L158 Benchmark]: BuchiAutomizer took 2401.34ms. Allocated memory is still 237.0MB. Free memory was 179.5MB in the beginning and 86.3MB in the end (delta: 93.2MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,726 INFO L158 Benchmark]: Witness Printer took 66.19ms. Allocated memory is still 237.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:25,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.76ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 78.2MB in the end (delta: 21.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.84ms. Allocated memory is still 159.4MB. Free memory was 78.2MB in the beginning and 74.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.40ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 71.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 862.39ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 71.1MB in the beginning and 179.5MB in the end (delta: -108.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2401.34ms. Allocated memory is still 237.0MB. Free memory was 179.5MB in the beginning and 86.3MB in the end (delta: 93.2MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 66.19ms. Allocated memory is still 237.0MB. Free memory was 86.3MB in the beginning and 83.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] - GenericResultAtLocation [Line: 133]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] - GenericResultAtLocation [Line: 232]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] - GenericResultAtLocation [Line: 456]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 961 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 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, 615 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 615 mSDsluCounter, 1853 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1091 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 762 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 564]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp)) [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND FALSE !(\read(tmp___1)) [L611] CALL timeShift() [L246] COND FALSE !(\read(pumpRunning)) [L253] COND TRUE \read(systemActive) [L255] CALL processEnvironment() [L301] int tmp ; [L304] COND FALSE !(\read(pumpRunning)) [L319] CALL processEnvironment__wrappee__methaneQuery() [L275] int tmp ; [L278] COND TRUE ! pumpRunning [L280] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L219] int retValue_acc ; [L222] COND TRUE waterLevel < 2 [L223] retValue_acc = 1 [L224] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND TRUE \read(tmp) [L424] tmp___0 = 0 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L280] RET, EXPR isHighWaterLevel() [L280] tmp = isHighWaterLevel() [L282] COND FALSE !(\read(tmp)) [L288] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment__wrappee__methaneQuery() [L255] RET processEnvironment() [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L261] RET __utac_acc__Specification3_spec__1() [L611] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 564]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp)) [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND FALSE !(\read(tmp___1)) [L611] CALL timeShift() [L246] COND FALSE !(\read(pumpRunning)) [L253] COND TRUE \read(systemActive) [L255] CALL processEnvironment() [L301] int tmp ; [L304] COND FALSE !(\read(pumpRunning)) [L319] CALL processEnvironment__wrappee__methaneQuery() [L275] int tmp ; [L278] COND TRUE ! pumpRunning [L280] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L219] int retValue_acc ; [L222] COND TRUE waterLevel < 2 [L223] retValue_acc = 1 [L224] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND TRUE \read(tmp) [L424] tmp___0 = 0 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L280] RET, EXPR isHighWaterLevel() [L280] tmp = isHighWaterLevel() [L282] COND FALSE !(\read(tmp)) [L288] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment__wrappee__methaneQuery() [L255] RET processEnvironment() [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L261] RET __utac_acc__Specification3_spec__1() [L611] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:47:25,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)