./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.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_product59.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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:47:27,654 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:47:27,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:47:27,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:47:27,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:47:27,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:47:27,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:47:27,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:47:27,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:47:27,764 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:47:27,764 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:47:27,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:47:27,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:47:27,765 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:47:27,767 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:47:27,767 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:47:27,767 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:47:27,767 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:47:27,768 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:47:27,768 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:47:27,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:47:27,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:47:27,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:47:27,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:47:27,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:47:27,772 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:47:27,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:47:27,773 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:47:27,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:47:27,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:47:27,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:47:27,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:47:27,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:47:27,774 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:47:27,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2024-11-17 08:47:27,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:47:27,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:47:27,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:47:27,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:47:27,984 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:47:27,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2024-11-17 08:47:29,291 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:47:29,460 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:47:29,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2024-11-17 08:47:29,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce507a61f/5aca421fc1984d5082a506f080ee87e5/FLAG40a611f8f [2024-11-17 08:47:29,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce507a61f/5aca421fc1984d5082a506f080ee87e5 [2024-11-17 08:47:29,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:47:29,497 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:47:29,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:29,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:47:29,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:47:29,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:29,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b89eb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29, skipping insertion in model container [2024-11-17 08:47:29,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:29,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:47:29,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:29,828 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:47:29,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-17 08:47:29,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-17 08:47:29,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [526] [2024-11-17 08:47:29,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [628] [2024-11-17 08:47:29,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [663] [2024-11-17 08:47:29,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] [2024-11-17 08:47:29,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] [2024-11-17 08:47:29,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] [2024-11-17 08:47:29,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:47:29,950 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:47:29,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29 WrapperNode [2024-11-17 08:47:29,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:47:29,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:29,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:47:29,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:47:29,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:29,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,009 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 103, statements flattened = 713 [2024-11-17 08:47:30,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:47:30,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:47:30,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:47:30,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:47:30,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,029 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,049 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 08:47:30,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:47:30,075 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:47:30,075 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:47:30,076 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:47:30,076 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (1/1) ... [2024-11-17 08:47:30,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:47:30,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:47:30,114 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 08:47:30,124 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 08:47:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:47:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:47:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:47:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:47:30,233 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:47:30,235 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:47:30,662 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L500-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L500-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L500-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L971-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L907-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L514-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L916-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L916-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L916-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L523-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L523-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L523-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~6#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L625-1: main_#res#1 := main_~retValue_acc~7#1; [2024-11-17 08:47:30,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L990-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-17 08:47:30,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L990-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-17 08:47:30,666 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L990-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-17 08:47:30,668 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L660-1: valid_product_#res#1 := valid_product_~retValue_acc~9#1; [2024-11-17 08:47:30,722 INFO L? ?]: Removed 178 outVars from TransFormulas that were not future-live. [2024-11-17 08:47:30,722 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:47:30,741 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:47:30,741 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:47:30,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:30 BoogieIcfgContainer [2024-11-17 08:47:30,742 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:47:30,745 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:47:30,745 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:47:30,749 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:47:30,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:30,750 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:47:29" (1/3) ... [2024-11-17 08:47:30,750 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45b12410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:30, skipping insertion in model container [2024-11-17 08:47:30,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:30,751 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:47:29" (2/3) ... [2024-11-17 08:47:30,752 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45b12410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:47:30, skipping insertion in model container [2024-11-17 08:47:30,752 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:47:30,752 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:30" (3/3) ... [2024-11-17 08:47:30,754 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2024-11-17 08:47:30,802 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:47:30,802 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:47:30,802 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:47:30,802 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:47:30,802 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:47:30,802 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:47:30,802 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:47:30,803 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:47:30,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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 08:47:30,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2024-11-17 08:47:30,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:30,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:30,845 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:30,846 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:30,846 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:47:30,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 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 08:47:30,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 131 [2024-11-17 08:47:30,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:30,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:30,854 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:30,854 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:30,858 INFO L745 eck$LassoCheckResult]: Stem: 190#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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 28#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 187#L651true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 182#L644true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 132#L659true assume true;main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 119#L615true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 82#L588true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 30#L720true [2024-11-17 08:47:30,858 INFO L747 eck$LassoCheckResult]: Loop: 30#L720true assume true; 143#L720-1true assume !false; 194#test_while_4_continue#1true assume true; 61#L722true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 53#L730true assume !(0 != test_~tmp~5#1); 55#L738true havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 144#L740true assume !(0 != test_~tmp___0~1#1); 34#L748true havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 181#L750true assume 0 != test_~tmp___2~0#1; 171#L765true assume { :begin_inline_timeShift } true; 140#L786-2true assume !(0 != ~pumpRunning~0); 64#L793-2true assume !(0 != ~systemActive~0); 169#L801-2true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 72#L467-6true assume true;__utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 24#L675-2true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 126#L696-2true assume true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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; 200#L803-2true assume true;assume { :end_inline_timeShift } true; 30#L720true [2024-11-17 08:47:30,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:30,866 INFO L85 PathProgramCache]: Analyzing trace with hash 203747653, now seen corresponding path program 1 times [2024-11-17 08:47:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:30,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412142074] [2024-11-17 08:47:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:30,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:30,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:30,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:30,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1475022192, now seen corresponding path program 1 times [2024-11-17 08:47:30,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:30,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889014663] [2024-11-17 08:47:30,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:30,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:31,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1963995596, now seen corresponding path program 1 times [2024-11-17 08:47:31,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492272387] [2024-11-17 08:47:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:31,172 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 08:47:31,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:31,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492272387] [2024-11-17 08:47:31,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492272387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:31,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:31,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:47:31,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478702496] [2024-11-17 08:47:31,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:31,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:31,363 INFO L87 Difference]: Start difference. First operand has 201 states, 200 states have (on average 1.355) internal successors, (271), 200 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:31,461 INFO L93 Difference]: Finished difference Result 382 states and 504 transitions. [2024-11-17 08:47:31,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 504 transitions. [2024-11-17 08:47:31,475 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 246 [2024-11-17 08:47:31,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 360 states and 481 transitions. [2024-11-17 08:47:31,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 360 [2024-11-17 08:47:31,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 360 [2024-11-17 08:47:31,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 360 states and 481 transitions. [2024-11-17 08:47:31,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:31,502 INFO L218 hiAutomatonCegarLoop]: Abstraction has 360 states and 481 transitions. [2024-11-17 08:47:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states and 481 transitions. [2024-11-17 08:47:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2024-11-17 08:47:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 1.3361344537815125) internal successors, (477), 356 states have internal predecessors, (477), 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 08:47:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 477 transitions. [2024-11-17 08:47:31,575 INFO L240 hiAutomatonCegarLoop]: Abstraction has 357 states and 477 transitions. [2024-11-17 08:47:31,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:31,579 INFO L425 stractBuchiCegarLoop]: Abstraction has 357 states and 477 transitions. [2024-11-17 08:47:31,580 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:47:31,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 357 states and 477 transitions. [2024-11-17 08:47:31,586 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 246 [2024-11-17 08:47:31,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:31,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:31,588 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:31,588 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:31,591 INFO L745 eck$LassoCheckResult]: Stem: 786#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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 676#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 677#L651 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 776#L644 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 672#L659 assume true;main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 615#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 616#L588 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 770#L720 [2024-11-17 08:47:31,591 INFO L747 eck$LassoCheckResult]: Loop: 770#L720 assume true; 824#L720-1 assume !false; 823#test_while_4_continue#1 assume true; 822#L722 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 729#L730 assume !(0 != test_~tmp~5#1); 678#L738 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 720#L740 assume !(0 != test_~tmp___0~1#1); 617#L748 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 689#L750 assume 0 != test_~tmp___2~0#1; 753#L765 assume { :begin_inline_timeShift } true; 711#L786-2 assume !(0 != ~pumpRunning~0); 686#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 744#L844-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 610#L818-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 612#L810-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 613#L836-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 624#L862-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 762#L801-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 758#L467-6 assume true;__utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 663#L675-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 603#L696-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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; 655#L803-2 assume true;assume { :end_inline_timeShift } true; 770#L720 [2024-11-17 08:47:31,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,592 INFO L85 PathProgramCache]: Analyzing trace with hash 203747653, now seen corresponding path program 2 times [2024-11-17 08:47:31,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290515434] [2024-11-17 08:47:31,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:31,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1548362521, now seen corresponding path program 1 times [2024-11-17 08:47:31,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193380151] [2024-11-17 08:47:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:31,663 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 08:47:31,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:31,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193380151] [2024-11-17 08:47:31,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193380151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:31,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:47:31,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829877027] [2024-11-17 08:47:31,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:31,668 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:47:31,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:31,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:47:31,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:47:31,668 INFO L87 Difference]: Start difference. First operand 357 states and 477 transitions. cyclomatic complexity: 124 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:31,778 INFO L93 Difference]: Finished difference Result 494 states and 637 transitions. [2024-11-17 08:47:31,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 494 states and 637 transitions. [2024-11-17 08:47:31,780 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 349 [2024-11-17 08:47:31,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 494 states to 494 states and 637 transitions. [2024-11-17 08:47:31,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 494 [2024-11-17 08:47:31,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 494 [2024-11-17 08:47:31,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 494 states and 637 transitions. [2024-11-17 08:47:31,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:31,797 INFO L218 hiAutomatonCegarLoop]: Abstraction has 494 states and 637 transitions. [2024-11-17 08:47:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states and 637 transitions. [2024-11-17 08:47:31,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2024-11-17 08:47:31,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 494 states have (on average 1.2894736842105263) internal successors, (637), 493 states have internal predecessors, (637), 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 08:47:31,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 637 transitions. [2024-11-17 08:47:31,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 494 states and 637 transitions. [2024-11-17 08:47:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:47:31,839 INFO L425 stractBuchiCegarLoop]: Abstraction has 494 states and 637 transitions. [2024-11-17 08:47:31,839 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:47:31,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 494 states and 637 transitions. [2024-11-17 08:47:31,845 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 349 [2024-11-17 08:47:31,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:31,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:31,845 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:31,845 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:31,846 INFO L745 eck$LassoCheckResult]: Stem: 1667#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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1530#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1531#L651 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1658#L644 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1528#L659 assume true;main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1470#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1471#L588 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1642#L720 [2024-11-17 08:47:31,846 INFO L747 eck$LassoCheckResult]: Loop: 1642#L720 assume true; 1569#L720-1 assume !false; 1570#test_while_4_continue#1 assume true; 1601#L722 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1591#L730 assume !(0 != test_~tmp~5#1); 1529#L738 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1576#L740 assume !(0 != test_~tmp___0~1#1); 1472#L748 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1542#L750 assume 0 != test_~tmp___2~0#1; 1615#L765 assume { :begin_inline_timeShift } true; 1565#L786-2 assume !(0 != ~pumpRunning~0); 1566#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1607#L844-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1467#L818-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1468#L507-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1762#L512-5 assume true;isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1761#L964-5 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1760#L969-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1758#L970-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1756#L822-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1663#L810-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1599#L836-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1792#L862-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1791#L801-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1620#L467-6 assume true;__utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1621#L675-2 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1786#L696-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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; 1785#L803-2 assume true;assume { :end_inline_timeShift } true; 1642#L720 [2024-11-17 08:47:31,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash 203747653, now seen corresponding path program 3 times [2024-11-17 08:47:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277284882] [2024-11-17 08:47:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:31,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2113530974, now seen corresponding path program 1 times [2024-11-17 08:47:31,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144329328] [2024-11-17 08:47:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:31,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash -545245466, now seen corresponding path program 1 times [2024-11-17 08:47:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308503737] [2024-11-17 08:47:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:31,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:47:32,064 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 08:47:32,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:47:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308503737] [2024-11-17 08:47:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308503737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:47:32,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:47:32,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 08:47:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539518526] [2024-11-17 08:47:32,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:47:32,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:47:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 08:47:32,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 08:47:32,155 INFO L87 Difference]: Start difference. First operand 494 states and 637 transitions. cyclomatic complexity: 147 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:47:32,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:47:32,236 INFO L93 Difference]: Finished difference Result 981 states and 1251 transitions. [2024-11-17 08:47:32,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 981 states and 1251 transitions. [2024-11-17 08:47:32,240 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 698 [2024-11-17 08:47:32,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 981 states to 981 states and 1251 transitions. [2024-11-17 08:47:32,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 981 [2024-11-17 08:47:32,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 981 [2024-11-17 08:47:32,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 981 states and 1251 transitions. [2024-11-17 08:47:32,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:47:32,245 INFO L218 hiAutomatonCegarLoop]: Abstraction has 981 states and 1251 transitions. [2024-11-17 08:47:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states and 1251 transitions. [2024-11-17 08:47:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 981. [2024-11-17 08:47:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 981 states have (on average 1.275229357798165) internal successors, (1251), 980 states have internal predecessors, (1251), 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 08:47:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1251 transitions. [2024-11-17 08:47:32,258 INFO L240 hiAutomatonCegarLoop]: Abstraction has 981 states and 1251 transitions. [2024-11-17 08:47:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 08:47:32,258 INFO L425 stractBuchiCegarLoop]: Abstraction has 981 states and 1251 transitions. [2024-11-17 08:47:32,259 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-17 08:47:32,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 981 states and 1251 transitions. [2024-11-17 08:47:32,262 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 698 [2024-11-17 08:47:32,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:47:32,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:47:32,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:32,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:47:32,263 INFO L745 eck$LassoCheckResult]: Stem: 3146#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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 3022#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3023#L651 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3140#L644 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 3020#L659 assume true;main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2959#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2960#L588 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3127#L720 [2024-11-17 08:47:32,263 INFO L747 eck$LassoCheckResult]: Loop: 3127#L720 assume true; 3437#L720-1 assume !false; 3436#test_while_4_continue#1 assume true; 3434#L722 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 3432#L730 assume !(0 != test_~tmp~5#1); 3430#L738 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3429#L740 assume !(0 != test_~tmp___0~1#1); 3427#L748 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 3426#L750 assume 0 != test_~tmp___2~0#1; 3425#L765 assume { :begin_inline_timeShift } true; 3463#L786-2 assume !(0 != ~pumpRunning~0); 3462#L793-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3461#L844-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 3383#L818-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3460#L507-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 3457#L512-5 assume true;isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 3455#L964-5 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3453#L969-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3380#L970-5 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 3375#L822-5 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3376#L810-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 3459#L836-5 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3456#L862-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 3454#L801-2 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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~4#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~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3452#L467-6 assume true;__utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 3451#L675-2 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 3450#L499-2 assume true;__utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 3448#L681-2 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3445#L696-2 assume true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#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; 3443#L803-2 assume true;assume { :end_inline_timeShift } true; 3127#L720 [2024-11-17 08:47:32,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash 203747653, now seen corresponding path program 4 times [2024-11-17 08:47:32,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:32,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073296002] [2024-11-17 08:47:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:32,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 415782080, now seen corresponding path program 1 times [2024-11-17 08:47:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:32,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014564936] [2024-11-17 08:47:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:32,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:47:32,283 INFO L85 PathProgramCache]: Analyzing trace with hash 4634372, now seen corresponding path program 1 times [2024-11-17 08:47:32,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:47:32,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261870036] [2024-11-17 08:47:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:47:32,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:47:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:47:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:47:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:47:32,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:47:32 BoogieIcfgContainer [2024-11-17 08:47:32,994 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:47:32,994 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:47:32,994 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:47:32,995 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:47:32,995 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:47:30" (3/4) ... [2024-11-17 08:47:32,996 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:47:33,039 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:47:33,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:47:33,041 INFO L158 Benchmark]: Toolchain (without parser) took 3544.49ms. Allocated memory was 184.5MB in the beginning and 264.2MB in the end (delta: 79.7MB). Free memory was 115.6MB in the beginning and 185.8MB in the end (delta: -70.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,042 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:47:33,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.18ms. Allocated memory is still 184.5MB. Free memory was 115.3MB in the beginning and 153.0MB in the end (delta: -37.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.40ms. Allocated memory is still 184.5MB. Free memory was 153.0MB in the beginning and 148.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,042 INFO L158 Benchmark]: Boogie Preprocessor took 64.65ms. Allocated memory is still 184.5MB. Free memory was 148.8MB in the beginning and 146.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,042 INFO L158 Benchmark]: IcfgBuilder took 666.51ms. Allocated memory is still 184.5MB. Free memory was 145.4MB in the beginning and 107.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,043 INFO L158 Benchmark]: BuchiAutomizer took 2248.75ms. Allocated memory was 184.5MB in the beginning and 264.2MB in the end (delta: 79.7MB). Free memory was 107.6MB in the beginning and 188.9MB in the end (delta: -81.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,043 INFO L158 Benchmark]: Witness Printer took 46.52ms. Allocated memory is still 264.2MB. Free memory was 188.9MB in the beginning and 185.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:47:33,044 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.18ms. Allocated memory is still 184.5MB. Free memory was 115.3MB in the beginning and 153.0MB in the end (delta: -37.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.40ms. Allocated memory is still 184.5MB. Free memory was 153.0MB in the beginning and 148.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.65ms. Allocated memory is still 184.5MB. Free memory was 148.8MB in the beginning and 146.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 666.51ms. Allocated memory is still 184.5MB. Free memory was 145.4MB in the beginning and 107.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2248.75ms. Allocated memory was 184.5MB in the beginning and 264.2MB in the end (delta: 79.7MB). Free memory was 107.6MB in the beginning and 188.9MB in the end (delta: -81.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 46.52ms. Allocated memory is still 264.2MB. Free memory was 188.9MB in the beginning and 185.8MB 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [526] - GenericResultAtLocation [Line: 628]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [628] - GenericResultAtLocation [Line: 663]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [663] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] - GenericResultAtLocation [Line: 708]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] - GenericResultAtLocation [Line: 776]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] * 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 981 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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, 618 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 1962 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1164 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 798 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:47:33,067 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)