./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:14:54,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:14:54,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:14:54,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:14:54,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:14:54,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:14:54,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:14:54,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:14:54,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:14:54,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:14:54,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:14:54,362 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:14:54,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:14:54,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:14:54,363 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:14:54,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:14:54,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:14:54,364 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:14:54,364 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad [2025-03-04 16:14:54,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:14:54,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:14:54,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:14:54,651 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:14:54,652 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:14:54,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2025-03-04 16:14:55,849 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfd4e0f/3dfcac5a7fe04ddcbdaff96c201e3a08/FLAGc27484af7 [2025-03-04 16:14:56,091 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:14:56,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2025-03-04 16:14:56,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfd4e0f/3dfcac5a7fe04ddcbdaff96c201e3a08/FLAGc27484af7 [2025-03-04 16:14:56,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbfd4e0f/3dfcac5a7fe04ddcbdaff96c201e3a08 [2025-03-04 16:14:56,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:14:56,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:14:56,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:14:56,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:14:56,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:14:56,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad7c462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56, skipping insertion in model container [2025-03-04 16:14:56,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:14:56,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:14:56,642 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:14:56,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] [2025-03-04 16:14:56,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] [2025-03-04 16:14:56,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:14:56,727 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:14:56,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56 WrapperNode [2025-03-04 16:14:56,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:14:56,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:14:56,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:14:56,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:14:56,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,767 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 52, calls inlined = 62, statements flattened = 406 [2025-03-04 16:14:56,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:14:56,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:14:56,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:14:56,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:14:56,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,784 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:14:56,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,789 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:14:56,795 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:14:56,795 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:14:56,795 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:14:56,796 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (1/1) ... [2025-03-04 16:14:56,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:14:56,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:14:56,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:14:56,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:14:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:14:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:14:56,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:14:56,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:14:56,885 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:14:56,887 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:14:57,152 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L620-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: main_#res#1 := main_~retValue_acc~11#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L675-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L675-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L675-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L857-1: valid_product_#res#1 := valid_product_~retValue_acc~10#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L611-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L611-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L611-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L793-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:14:57,153 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L793-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:14:57,154 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L793-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-04 16:14:57,171 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-03-04 16:14:57,171 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:14:57,187 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:14:57,187 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:14:57,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:14:57 BoogieIcfgContainer [2025-03-04 16:14:57,189 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:14:57,189 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:14:57,189 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:14:57,193 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:14:57,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:14:57,194 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:14:56" (1/3) ... [2025-03-04 16:14:57,196 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a4405a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:14:57, skipping insertion in model container [2025-03-04 16:14:57,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:14:57,196 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:14:56" (2/3) ... [2025-03-04 16:14:57,196 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a4405a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:14:57, skipping insertion in model container [2025-03-04 16:14:57,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:14:57,196 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:14:57" (3/3) ... [2025-03-04 16:14:57,199 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2025-03-04 16:14:57,238 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:14:57,238 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:14:57,238 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:14:57,238 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:14:57,238 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:14:57,238 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:14:57,238 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:14:57,238 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:14:57,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2025-03-04 16:14:57,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:57,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:57,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,269 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:14:57,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2025-03-04 16:14:57,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:57,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:57,276 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,282 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:14:57,282 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:14:57,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,292 INFO L85 PathProgramCache]: Analyzing trace with hash -700410652, now seen corresponding path program 1 times [2025-03-04 16:14:57,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411194625] [2025-03-04 16:14:57,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:57,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,367 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:57,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:57,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,393 INFO L85 PathProgramCache]: Analyzing trace with hash -136692921, now seen corresponding path program 1 times [2025-03-04 16:14:57,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194305636] [2025-03-04 16:14:57,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:57,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:14:57,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:14:57,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,400 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:57,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 16:14:57,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 16:14:57,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:57,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,410 INFO L85 PathProgramCache]: Analyzing trace with hash 152218154, now seen corresponding path program 1 times [2025-03-04 16:14:57,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732508397] [2025-03-04 16:14:57,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:57,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:14:57,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:14:57,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:14:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:14:57,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:14:57,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732508397] [2025-03-04 16:14:57,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732508397] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:14:57,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:14:57,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:14:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760317343] [2025-03-04 16:14:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:14:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:14:57,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 16:14:57,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 16:14:57,704 INFO L87 Difference]: Start difference. First operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:14:57,809 INFO L93 Difference]: Finished difference Result 288 states and 372 transitions. [2025-03-04 16:14:57,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 372 transitions. [2025-03-04 16:14:57,814 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 185 [2025-03-04 16:14:57,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 258 states and 342 transitions. [2025-03-04 16:14:57,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2025-03-04 16:14:57,822 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2025-03-04 16:14:57,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 342 transitions. [2025-03-04 16:14:57,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:14:57,825 INFO L218 hiAutomatonCegarLoop]: Abstraction has 258 states and 342 transitions. [2025-03-04 16:14:57,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 342 transitions. [2025-03-04 16:14:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 157. [2025-03-04 16:14:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 208 transitions. [2025-03-04 16:14:57,849 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 208 transitions. [2025-03-04 16:14:57,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 16:14:57,853 INFO L432 stractBuchiCegarLoop]: Abstraction has 157 states and 208 transitions. [2025-03-04 16:14:57,853 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:14:57,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 208 transitions. [2025-03-04 16:14:57,854 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 111 [2025-03-04 16:14:57,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:57,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:57,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,855 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,855 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:14:57,855 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:14:57,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,856 INFO L85 PathProgramCache]: Analyzing trace with hash -700410652, now seen corresponding path program 2 times [2025-03-04 16:14:57,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070050703] [2025-03-04 16:14:57,856 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:14:57,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,863 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,871 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,872 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:14:57,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,872 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:57,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:57,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,880 INFO L85 PathProgramCache]: Analyzing trace with hash 54408765, now seen corresponding path program 1 times [2025-03-04 16:14:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178241709] [2025-03-04 16:14:57,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:57,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 16:14:57,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 16:14:57,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:14:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:14:57,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:14:57,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178241709] [2025-03-04 16:14:57,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178241709] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:14:57,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:14:57,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:14:57,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709257298] [2025-03-04 16:14:57,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:14:57,908 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:14:57,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:14:57,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:14:57,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:14:57,909 INFO L87 Difference]: Start difference. First operand 157 states and 208 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:14:57,970 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2025-03-04 16:14:57,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 261 transitions. [2025-03-04 16:14:57,972 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2025-03-04 16:14:57,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 206 states and 261 transitions. [2025-03-04 16:14:57,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2025-03-04 16:14:57,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 206 [2025-03-04 16:14:57,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 206 states and 261 transitions. [2025-03-04 16:14:57,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:14:57,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-03-04 16:14:57,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states and 261 transitions. [2025-03-04 16:14:57,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2025-03-04 16:14:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.266990291262136) internal successors, (261), 205 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 261 transitions. [2025-03-04 16:14:57,986 INFO L240 hiAutomatonCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-03-04 16:14:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:14:57,987 INFO L432 stractBuchiCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-03-04 16:14:57,987 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:14:57,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 261 transitions. [2025-03-04 16:14:57,988 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2025-03-04 16:14:57,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:57,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:57,988 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,988 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:57,988 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:14:57,988 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret31#1;havoc processEnvironment_#t~ret31#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:14:57,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -700410652, now seen corresponding path program 3 times [2025-03-04 16:14:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241174930] [2025-03-04 16:14:57,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:14:57,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:57,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,995 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,995 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:14:57,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:57,995 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:57,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:57,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:57,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:57,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:58,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1860626711, now seen corresponding path program 1 times [2025-03-04 16:14:58,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029077344] [2025-03-04 16:14:58,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:58,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:14:58,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:14:58,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:14:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:14:58,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:14:58,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029077344] [2025-03-04 16:14:58,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029077344] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:14:58,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:14:58,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 16:14:58,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464040306] [2025-03-04 16:14:58,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:14:58,062 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:14:58,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:14:58,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 16:14:58,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 16:14:58,062 INFO L87 Difference]: Start difference. First operand 206 states and 261 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:14:58,099 INFO L93 Difference]: Finished difference Result 212 states and 267 transitions. [2025-03-04 16:14:58,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 267 transitions. [2025-03-04 16:14:58,102 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2025-03-04 16:14:58,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 212 states and 267 transitions. [2025-03-04 16:14:58,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2025-03-04 16:14:58,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2025-03-04 16:14:58,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 267 transitions. [2025-03-04 16:14:58,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:14:58,107 INFO L218 hiAutomatonCegarLoop]: Abstraction has 212 states and 267 transitions. [2025-03-04 16:14:58,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 267 transitions. [2025-03-04 16:14:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2025-03-04 16:14:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.259433962264151) internal successors, (267), 211 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2025-03-04 16:14:58,120 INFO L240 hiAutomatonCegarLoop]: Abstraction has 212 states and 267 transitions. [2025-03-04 16:14:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 16:14:58,121 INFO L432 stractBuchiCegarLoop]: Abstraction has 212 states and 267 transitions. [2025-03-04 16:14:58,121 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-04 16:14:58,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 267 transitions. [2025-03-04 16:14:58,122 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2025-03-04 16:14:58,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:58,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:58,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:58,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:58,123 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:14:58,123 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1;" "assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret31#1;havoc processEnvironment_#t~ret31#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:14:58,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,124 INFO L85 PathProgramCache]: Analyzing trace with hash -700410652, now seen corresponding path program 4 times [2025-03-04 16:14:58,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679518555] [2025-03-04 16:14:58,126 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 16:14:58,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,132 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-04 16:14:58,137 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:58,137 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 16:14:58,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,137 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:58,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:58,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:58,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:58,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash 63675352, now seen corresponding path program 1 times [2025-03-04 16:14:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182593628] [2025-03-04 16:14:58,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:58,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:14:58,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:14:58,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:14:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:14:58,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:14:58,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182593628] [2025-03-04 16:14:58,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182593628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:14:58,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:14:58,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 16:14:58,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255177373] [2025-03-04 16:14:58,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:14:58,204 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:14:58,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:14:58,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 16:14:58,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 16:14:58,205 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. cyclomatic complexity: 58 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:58,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:14:58,272 INFO L93 Difference]: Finished difference Result 221 states and 276 transitions. [2025-03-04 16:14:58,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 276 transitions. [2025-03-04 16:14:58,276 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2025-03-04 16:14:58,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 221 states and 276 transitions. [2025-03-04 16:14:58,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2025-03-04 16:14:58,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2025-03-04 16:14:58,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 276 transitions. [2025-03-04 16:14:58,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:14:58,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 221 states and 276 transitions. [2025-03-04 16:14:58,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 276 transitions. [2025-03-04 16:14:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2025-03-04 16:14:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 221 states have (on average 1.248868778280543) internal successors, (276), 220 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:14:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 276 transitions. [2025-03-04 16:14:58,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 221 states and 276 transitions. [2025-03-04 16:14:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 16:14:58,292 INFO L432 stractBuchiCegarLoop]: Abstraction has 221 states and 276 transitions. [2025-03-04 16:14:58,292 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-04 16:14:58,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 276 transitions. [2025-03-04 16:14:58,293 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2025-03-04 16:14:58,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:14:58,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:14:58,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:58,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:14:58,294 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:14:58,294 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret31#1;havoc processEnvironment_#t~ret31#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:14:58,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash -700410652, now seen corresponding path program 5 times [2025-03-04 16:14:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829473304] [2025-03-04 16:14:58,296 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 16:14:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,301 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:58,305 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:58,307 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:14:58,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,307 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:58,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:58,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:58,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:58,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1847534571, now seen corresponding path program 1 times [2025-03-04 16:14:58,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611942672] [2025-03-04 16:14:58,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:58,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:14:58,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:14:58,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,324 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:58,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 16:14:58,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 16:14:58,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:58,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:14:58,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1956414318, now seen corresponding path program 1 times [2025-03-04 16:14:58,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:14:58,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686821870] [2025-03-04 16:14:58,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:14:58,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:14:58,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 16:14:58,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 16:14:58,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,339 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:58,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 16:14:58,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 16:14:58,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:58,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:58,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:14:59,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:59,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:59,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:59,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:59,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:14:59,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 16:14:59,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 16:14:59,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:14:59,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:14:59,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:14:59 BoogieIcfgContainer [2025-03-04 16:14:59,065 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:14:59,066 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:14:59,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:14:59,066 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:14:59,066 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:14:57" (3/4) ... [2025-03-04 16:14:59,068 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:14:59,102 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:14:59,103 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:14:59,104 INFO L158 Benchmark]: Toolchain (without parser) took 2676.89ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 57.3MB in the end (delta: 55.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2025-03-04 16:14:59,107 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:14:59,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.56ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 94.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:14:59,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.36ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:14:59,108 INFO L158 Benchmark]: Boogie Preprocessor took 27.07ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 89.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:14:59,108 INFO L158 Benchmark]: IcfgBuilder took 393.37ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 66.2MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:14:59,108 INFO L158 Benchmark]: BuchiAutomizer took 1875.64ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2025-03-04 16:14:59,108 INFO L158 Benchmark]: Witness Printer took 37.42ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 57.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:14:59,109 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.56ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 94.0MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.36ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.07ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 89.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 393.37ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 66.2MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1875.64ms. Allocated memory is still 142.6MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 37.42ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 57.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 701]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] - GenericResultAtLocation [Line: 796]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] - GenericResultAtLocation [Line: 822]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 221 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 101 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, 515 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 1758 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1196 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 562 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 441]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L441] COND TRUE 1 [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() [L516] COND FALSE !(\read(pumpRunning)) [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; [L786] COND TRUE waterLevel < 2 [L787] retValue_acc = 1 [L788] return (retValue_acc); [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND TRUE \read(tmp) [L669] tmp___0 = 0 [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND FALSE !(\read(tmp)) [L558] FCALL processEnvironment__wrappee__base() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; [L803] CALL, EXPR isMethaneLevelCritical() [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 441]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L441] COND TRUE 1 [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() [L516] COND FALSE !(\read(pumpRunning)) [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; [L786] COND TRUE waterLevel < 2 [L787] retValue_acc = 1 [L788] return (retValue_acc); [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND TRUE \read(tmp) [L669] tmp___0 = 0 [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND FALSE !(\read(tmp)) [L558] FCALL processEnvironment__wrappee__base() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; [L803] CALL, EXPR isMethaneLevelCritical() [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:14:59,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)