./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_spec2_product43.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 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:15:31,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:15:31,489 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:15:31,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:15:31,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:15:31,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:15:31,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:15:31,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:15:31,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:15:31,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:15:31,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:15:31,511 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:15:31,511 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:15:31,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:15:31,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:15:31,513 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:15:31,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:15:31,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:15:31,514 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:15:31,514 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 -> 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a [2025-03-04 16:15:31,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:15:31,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:15:31,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:15:31,749 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:15:31,749 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:15:31,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2025-03-04 16:15:32,880 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78047a9d/aed09610e02c453487d99c86dcc9ca6e/FLAG70b77bbd2 [2025-03-04 16:15:33,149 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:15:33,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2025-03-04 16:15:33,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78047a9d/aed09610e02c453487d99c86dcc9ca6e/FLAG70b77bbd2 [2025-03-04 16:15:33,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e78047a9d/aed09610e02c453487d99c86dcc9ca6e [2025-03-04 16:15:33,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:15:33,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:15:33,188 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:33,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:15:33,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:15:33,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f5c14a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33, skipping insertion in model container [2025-03-04 16:15:33,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:15:33,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:33,439 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:15:33,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [655] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [696] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [764] [2025-03-04 16:15:33,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [951] [2025-03-04 16:15:33,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:15:33,511 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:15:33,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33 WrapperNode [2025-03-04 16:15:33,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:15:33,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:33,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:15:33,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:15:33,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,556 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 52, calls inlined = 62, statements flattened = 419 [2025-03-04 16:15:33,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:15:33,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:15:33,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:15:33,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:15:33,564 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,585 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 16:15:33,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:15:33,605 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:15:33,607 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:15:33,607 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:15:33,608 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (1/1) ... [2025-03-04 16:15:33,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:15:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:15:33,637 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 16:15:33,639 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 16:15:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:15:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:15:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:15:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:15:33,717 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:15:33,718 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L617-1: main_#res#1 := main_~retValue_acc~6#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L652-1: valid_product_#res#1 := valid_product_~retValue_acc~8#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; [2025-03-04 16:15:34,053 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L869-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~9#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L147-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,054 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L101-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; [2025-03-04 16:15:34,074 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-03-04 16:15:34,074 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:15:34,085 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:15:34,085 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:15:34,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:34 BoogieIcfgContainer [2025-03-04 16:15:34,085 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:15:34,086 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:15:34,086 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:15:34,093 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:15:34,093 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:34,093 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:15:33" (1/3) ... [2025-03-04 16:15:34,094 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d79e036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:34, skipping insertion in model container [2025-03-04 16:15:34,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:34,094 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:15:33" (2/3) ... [2025-03-04 16:15:34,094 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d79e036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:15:34, skipping insertion in model container [2025-03-04 16:15:34,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:15:34,094 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:34" (3/3) ... [2025-03-04 16:15:34,095 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2025-03-04 16:15:34,137 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:15:34,138 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:15:34,138 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:15:34,138 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:15:34,138 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:15:34,138 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:15:34,138 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:15:34,138 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:15:34,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.36) internal successors, (170), 125 states have internal predecessors, (170), 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 16:15:34,161 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2025-03-04 16:15:34,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:34,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:34,166 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,166 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,166 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:15:34,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.36) internal successors, (170), 125 states have internal predecessors, (170), 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 16:15:34,171 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2025-03-04 16:15:34,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:34,171 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:34,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,175 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:34,175 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:34,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1458377830, now seen corresponding path program 1 times [2025-03-04 16:15:34,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740317398] [2025-03-04 16:15:34,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,247 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,281 INFO L85 PathProgramCache]: Analyzing trace with hash 380173454, now seen corresponding path program 1 times [2025-03-04 16:15:34,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611159386] [2025-03-04 16:15:34,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:34,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:34,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,292 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 16:15:34,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 16:15:34,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1641002027, now seen corresponding path program 1 times [2025-03-04 16:15:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766770540] [2025-03-04 16:15:34,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 16:15:34,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 16:15:34,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:34,422 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 16:15:34,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766770540] [2025-03-04 16:15:34,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766770540] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:34,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:34,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 16:15:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872284391] [2025-03-04 16:15:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:34,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:34,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:34,511 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.36) internal successors, (170), 125 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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 16:15:34,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:34,549 INFO L93 Difference]: Finished difference Result 231 states and 305 transitions. [2025-03-04 16:15:34,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 305 transitions. [2025-03-04 16:15:34,555 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 144 [2025-03-04 16:15:34,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 211 states and 284 transitions. [2025-03-04 16:15:34,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2025-03-04 16:15:34,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2025-03-04 16:15:34,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 284 transitions. [2025-03-04 16:15:34,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:34,570 INFO L218 hiAutomatonCegarLoop]: Abstraction has 211 states and 284 transitions. [2025-03-04 16:15:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 284 transitions. [2025-03-04 16:15:34,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2025-03-04 16:15:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 208 states have (on average 1.3461538461538463) internal successors, (280), 207 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:34,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 280 transitions. [2025-03-04 16:15:34,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 208 states and 280 transitions. [2025-03-04 16:15:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:34,600 INFO L432 stractBuchiCegarLoop]: Abstraction has 208 states and 280 transitions. [2025-03-04 16:15:34,600 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:15:34,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 208 states and 280 transitions. [2025-03-04 16:15:34,602 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 144 [2025-03-04 16:15:34,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:34,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:34,602 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,602 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,602 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:34,603 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1458377830, now seen corresponding path program 2 times [2025-03-04 16:15:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521153465] [2025-03-04 16:15:34,603 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 16:15:34,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,608 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,611 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,611 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 16:15:34,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,612 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,617 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 564742748, now seen corresponding path program 1 times [2025-03-04 16:15:34,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666404829] [2025-03-04 16:15:34,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 16:15:34,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 16:15:34,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:15:34,643 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 16:15:34,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 16:15:34,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666404829] [2025-03-04 16:15:34,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666404829] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 16:15:34,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 16:15:34,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 16:15:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109339597] [2025-03-04 16:15:34,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 16:15:34,648 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-04 16:15:34,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 16:15:34,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 16:15:34,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 16:15:34,648 INFO L87 Difference]: Start difference. First operand 208 states and 280 transitions. cyclomatic complexity: 76 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:15:34,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 16:15:34,725 INFO L93 Difference]: Finished difference Result 321 states and 422 transitions. [2025-03-04 16:15:34,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 422 transitions. [2025-03-04 16:15:34,728 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 229 [2025-03-04 16:15:34,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 422 transitions. [2025-03-04 16:15:34,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2025-03-04 16:15:34,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2025-03-04 16:15:34,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 422 transitions. [2025-03-04 16:15:34,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:15:34,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 321 states and 422 transitions. [2025-03-04 16:15:34,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 422 transitions. [2025-03-04 16:15:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2025-03-04 16:15:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 321 states have (on average 1.3146417445482865) internal successors, (422), 320 states have internal predecessors, (422), 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 16:15:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 422 transitions. [2025-03-04 16:15:34,740 INFO L240 hiAutomatonCegarLoop]: Abstraction has 321 states and 422 transitions. [2025-03-04 16:15:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 16:15:34,743 INFO L432 stractBuchiCegarLoop]: Abstraction has 321 states and 422 transitions. [2025-03-04 16:15:34,743 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-04 16:15:34,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states and 422 transitions. [2025-03-04 16:15:34,744 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 229 [2025-03-04 16:15:34,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:15:34,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:15:34,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:15:34,745 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] [2025-03-04 16:15:34,745 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret32#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-04 16:15:34,745 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1;" "isHighWaterLevel_#t~ret51#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret51#1;havoc isHighWaterLevel_#t~ret51#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1;" "processEnvironment_#t~ret40#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret51#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1;" "assume !(0 != processEnvironment_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1;" "__utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-03-04 16:15:34,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1458377830, now seen corresponding path program 3 times [2025-03-04 16:15:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845225788] [2025-03-04 16:15:34,746 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 16:15:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,751 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,754 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,754 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 16:15:34,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,755 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:34,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:34,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash 396224531, now seen corresponding path program 1 times [2025-03-04 16:15:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883681374] [2025-03-04 16:15:34,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 16:15:34,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 16:15:34,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,775 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 16:15:34,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 16:15:34,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:34,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:15:34,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2109876052, now seen corresponding path program 1 times [2025-03-04 16:15:34,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:15:34,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443966014] [2025-03-04 16:15:34,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:15:34,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:15:34,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 16:15:34,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 16:15:34,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,807 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:34,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 16:15:34,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 16:15:34,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:34,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:34,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:15:35,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:35,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:35,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:35,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:35,506 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:15:35,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:15:35,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:15:35,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:15:35,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:15:35,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:15:35 BoogieIcfgContainer [2025-03-04 16:15:35,555 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:15:35,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:15:35,556 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:15:35,556 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:15:35,559 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:15:34" (3/4) ... [2025-03-04 16:15:35,560 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-04 16:15:35,611 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 16:15:35,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:15:35,614 INFO L158 Benchmark]: Toolchain (without parser) took 2427.36ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 69.2MB in the end (delta: 61.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2025-03-04 16:15:35,614 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:35,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.45ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 112.0MB in the end (delta: 18.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:35,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.54ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 109.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:15:35,617 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:35,617 INFO L158 Benchmark]: IcfgBuilder took 480.79ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 83.4MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 16:15:35,617 INFO L158 Benchmark]: BuchiAutomizer took 1468.91ms. Allocated memory is still 167.8MB. Free memory was 83.4MB in the beginning and 72.3MB in the end (delta: 11.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2025-03-04 16:15:35,618 INFO L158 Benchmark]: Witness Printer took 56.64ms. Allocated memory is still 167.8MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:15:35,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.45ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 112.0MB in the end (delta: 18.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.54ms. Allocated memory is still 167.8MB. Free memory was 112.0MB in the beginning and 109.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 167.8MB. Free memory was 109.5MB in the beginning and 107.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 480.79ms. Allocated memory is still 167.8MB. Free memory was 107.7MB in the beginning and 83.4MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1468.91ms. Allocated memory is still 167.8MB. Free memory was 83.4MB in the beginning and 72.3MB in the end (delta: 11.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 56.64ms. Allocated memory is still 167.8MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [516] - GenericResultAtLocation [Line: 620]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [620] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [655] - GenericResultAtLocation [Line: 696]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [696] - GenericResultAtLocation [Line: 764]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [764] - GenericResultAtLocation [Line: 951]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [951] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 321 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 257 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 257 mSDsluCounter, 515 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 221 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 294 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 708]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L588] CALL __utac_acc__Specification2_spec__1() [L663] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] RET __utac_acc__Specification2_spec__1() [L589] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L753] CALL timeShift() [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; [L924] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L924] RET, EXPR isHighWaterSensorDry() [L924] tmp = isHighWaterSensorDry() [L926] COND TRUE \read(tmp) [L927] tmp___0 = 0 [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND FALSE !(\read(tmp)) [L816] FCALL processEnvironment__wrappee__base() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; [L673] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 708]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L517] int cleanupTimeShifts = 4; [L658] int methAndRunningLastTime ; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; [L603] FCALL select_helpers() [L604] FCALL select_features() [L605] CALL, EXPR valid_product() [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] RET, EXPR valid_product() [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) [L609] FCALL setup() [L610] CALL runTest() [L588] CALL __utac_acc__Specification2_spec__1() [L663] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] RET __utac_acc__Specification2_spec__1() [L589] CALL test() [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L708] COND TRUE 1 [L710] COND TRUE splverifierCounter < 4 [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L753] CALL timeShift() [L774] COND FALSE !(\read(pumpRunning)) [L781] COND TRUE \read(systemActive) [L783] CALL processEnvironment() [L803] int tmp ; [L806] COND TRUE ! pumpRunning [L808] CALL, EXPR isHighWaterLevel() [L918] int retValue_acc ; [L919] int tmp ; [L920] int tmp___0 ; [L924] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L924] RET, EXPR isHighWaterSensorDry() [L924] tmp = isHighWaterSensorDry() [L926] COND TRUE \read(tmp) [L927] tmp___0 = 0 [L931] retValue_acc = tmp___0 [L932] return (retValue_acc); [L808] RET, EXPR isHighWaterLevel() [L808] tmp = isHighWaterLevel() [L810] COND FALSE !(\read(tmp)) [L816] FCALL processEnvironment__wrappee__base() [L783] RET processEnvironment() [L789] CALL __utac_acc__Specification2_spec__2() [L668] int tmp ; [L669] int tmp___0 ; [L673] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L691] methAndRunningLastTime = 0 [L789] RET __utac_acc__Specification2_spec__2() [L753] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-04 16:15:35,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)