./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 19:44:36,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 19:44:36,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-06 19:44:36,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 19:44:36,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 19:44:36,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-06 19:44:36,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 19:44:36,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 19:44:36,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 19:44:36,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 19:44:36,532 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 19:44:36,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 19:44:36,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 19:44:36,532 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 19:44:36,533 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-06 19:44:36,533 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-06 19:44:36,533 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-06 19:44:36,533 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-06 19:44:36,533 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-06 19:44:36,533 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-06 19:44:36,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-06 19:44:36,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 19:44:36,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 19:44:36,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 19:44:36,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 19:44:36,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 19:44:36,536 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-06 19:44:36,536 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-jdk21/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 -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2025-02-06 19:44:36,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 19:44:36,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 19:44:36,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 19:44:36,809 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 19:44:36,809 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 19:44:36,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2025-02-06 19:44:38,151 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d03750fc/97224ab8ccf6448baf7748452a041480/FLAG51a4405bf [2025-02-06 19:44:38,439 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 19:44:38,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2025-02-06 19:44:38,459 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d03750fc/97224ab8ccf6448baf7748452a041480/FLAG51a4405bf [2025-02-06 19:44:38,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7d03750fc/97224ab8ccf6448baf7748452a041480 [2025-02-06 19:44:38,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 19:44:38,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 19:44:38,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 19:44:38,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 19:44:38,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 19:44:38,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:44:38" (1/1) ... [2025-02-06 19:44:38,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4963f7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:38, skipping insertion in model container [2025-02-06 19:44:38,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 07:44:38" (1/1) ... [2025-02-06 19:44:38,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 19:44:39,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:44:39,031 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 19:44:39,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] [2025-02-06 19:44:39,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] [2025-02-06 19:44:39,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 19:44:39,108 INFO L204 MainTranslator]: Completed translation [2025-02-06 19:44:39,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39 WrapperNode [2025-02-06 19:44:39,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 19:44:39,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 19:44:39,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 19:44:39,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 19:44:39,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,152 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 99, statements flattened = 654 [2025-02-06 19:44:39,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 19:44:39,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 19:44:39,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 19:44:39,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 19:44:39,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,185 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]. [2025-02-06 19:44:39,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,200 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,201 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 19:44:39,209 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 19:44:39,209 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 19:44:39,209 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 19:44:39,210 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (1/1) ... [2025-02-06 19:44:39,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-06 19:44:39,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 19:44:39,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-06 19:44:39,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-06 19:44:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 19:44:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 19:44:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 19:44:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 19:44:39,342 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 19:44:39,343 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L267-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~1#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,823 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L548-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L322-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,824 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L258-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,825 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,827 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L429-1: main_#res#1 := main_~retValue_acc~3#1; [2025-02-06 19:44:39,827 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,827 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,827 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L594-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-02-06 19:44:39,827 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L464-1: valid_product_#res#1 := valid_product_~retValue_acc~5#1; [2025-02-06 19:44:39,859 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2025-02-06 19:44:39,860 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 19:44:39,874 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 19:44:39,875 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 19:44:39,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:44:39 BoogieIcfgContainer [2025-02-06 19:44:39,875 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 19:44:39,876 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-06 19:44:39,876 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-06 19:44:39,881 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-06 19:44:39,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:44:39,882 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.02 07:44:38" (1/3) ... [2025-02-06 19:44:39,883 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70de95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:44:39, skipping insertion in model container [2025-02-06 19:44:39,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:44:39,883 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 07:44:39" (2/3) ... [2025-02-06 19:44:39,883 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70de95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.02 07:44:39, skipping insertion in model container [2025-02-06 19:44:39,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-06 19:44:39,884 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:44:39" (3/3) ... [2025-02-06 19:44:39,886 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2025-02-06 19:44:39,922 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-06 19:44:39,922 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-06 19:44:39,922 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-06 19:44:39,922 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-06 19:44:39,922 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-06 19:44:39,922 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-06 19:44:39,922 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-06 19:44:39,922 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-06 19:44:39,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 182 states, 181 states have (on average 1.3425414364640884) internal successors, (243), 181 states have internal predecessors, (243), 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) [2025-02-06 19:44:39,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2025-02-06 19:44:39,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:39,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:39,947 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:39,947 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:39,947 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-06 19:44:39,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 182 states, 181 states have (on average 1.3425414364640884) internal successors, (243), 181 states have internal predecessors, (243), 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) [2025-02-06 19:44:39,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 117 [2025-02-06 19:44:39,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:39,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:39,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:39,961 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:39,968 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:44:39,968 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#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___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#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~ret23#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:44:39,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:39,972 INFO L85 PathProgramCache]: Analyzing trace with hash -285825185, now seen corresponding path program 1 times [2025-02-06 19:44:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769039120] [2025-02-06 19:44:39,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,060 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:40,065 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:40,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1117222992, now seen corresponding path program 1 times [2025-02-06 19:44:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260194333] [2025-02-06 19:44:40,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:40,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 19:44:40,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 19:44:40,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:44:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:44:40,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:44:40,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260194333] [2025-02-06 19:44:40,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260194333] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:44:40,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:44:40,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:44:40,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554719412] [2025-02-06 19:44:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:44:40,205 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:44:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:44:40,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:44:40,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:44:40,231 INFO L87 Difference]: Start difference. First operand has 182 states, 181 states have (on average 1.3425414364640884) internal successors, (243), 181 states have internal predecessors, (243), 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 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2025-02-06 19:44:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:44:40,279 INFO L93 Difference]: Finished difference Result 176 states and 229 transitions. [2025-02-06 19:44:40,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 229 transitions. [2025-02-06 19:44:40,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2025-02-06 19:44:40,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 166 states and 218 transitions. [2025-02-06 19:44:40,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2025-02-06 19:44:40,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2025-02-06 19:44:40,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 218 transitions. [2025-02-06 19:44:40,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:44:40,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 166 states and 218 transitions. [2025-02-06 19:44:40,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 218 transitions. [2025-02-06 19:44:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2025-02-06 19:44:40,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 166 states have (on average 1.3132530120481927) internal successors, (218), 165 states have internal predecessors, (218), 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) [2025-02-06 19:44:40,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2025-02-06 19:44:40,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 166 states and 218 transitions. [2025-02-06 19:44:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:44:40,340 INFO L432 stractBuchiCegarLoop]: Abstraction has 166 states and 218 transitions. [2025-02-06 19:44:40,340 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-06 19:44:40,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 218 transitions. [2025-02-06 19:44:40,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 111 [2025-02-06 19:44:40,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:40,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:40,343 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,343 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] [2025-02-06 19:44:40,343 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:44:40,343 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#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~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#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~ret23#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:44:40,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,344 INFO L85 PathProgramCache]: Analyzing trace with hash -285825185, now seen corresponding path program 2 times [2025-02-06 19:44:40,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237367276] [2025-02-06 19:44:40,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 19:44:40,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,353 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,362 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,363 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:44:40,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,363 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:40,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:40,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1650149726, now seen corresponding path program 1 times [2025-02-06 19:44:40,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873026985] [2025-02-06 19:44:40,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:40,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 19:44:40,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 19:44:40,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:44:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:44:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:44:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873026985] [2025-02-06 19:44:40,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873026985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:44:40,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:44:40,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 19:44:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318424184] [2025-02-06 19:44:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:44:40,413 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:44:40,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:44:40,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 19:44:40,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 19:44:40,416 INFO L87 Difference]: Start difference. First operand 166 states and 218 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-02-06 19:44:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:44:40,501 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2025-02-06 19:44:40,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 285 transitions. [2025-02-06 19:44:40,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2025-02-06 19:44:40,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 226 states and 285 transitions. [2025-02-06 19:44:40,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2025-02-06 19:44:40,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2025-02-06 19:44:40,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 285 transitions. [2025-02-06 19:44:40,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:44:40,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 226 states and 285 transitions. [2025-02-06 19:44:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 285 transitions. [2025-02-06 19:44:40,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2025-02-06 19:44:40,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 226 states have (on average 1.261061946902655) internal successors, (285), 225 states have internal predecessors, (285), 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) [2025-02-06 19:44:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 285 transitions. [2025-02-06 19:44:40,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 226 states and 285 transitions. [2025-02-06 19:44:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 19:44:40,520 INFO L432 stractBuchiCegarLoop]: Abstraction has 226 states and 285 transitions. [2025-02-06 19:44:40,520 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-06 19:44:40,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 226 states and 285 transitions. [2025-02-06 19:44:40,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2025-02-06 19:44:40,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:40,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:40,523 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,523 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,523 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:44:40,523 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~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~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__methaneQuery_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret8#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#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~ret23#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:44:40,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,524 INFO L85 PathProgramCache]: Analyzing trace with hash -285825185, now seen corresponding path program 3 times [2025-02-06 19:44:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520638390] [2025-02-06 19:44:40,524 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 19:44:40,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,532 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,538 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,538 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 19:44:40,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,538 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:40,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:40,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,553 INFO L85 PathProgramCache]: Analyzing trace with hash -460237371, now seen corresponding path program 1 times [2025-02-06 19:44:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335746452] [2025-02-06 19:44:40,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:40,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 19:44:40,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 19:44:40,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:44:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:44:40,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:44:40,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335746452] [2025-02-06 19:44:40,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335746452] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:44:40,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:44:40,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 19:44:40,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115154604] [2025-02-06 19:44:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:44:40,645 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:44:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:44:40,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 19:44:40,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 19:44:40,645 INFO L87 Difference]: Start difference. First operand 226 states and 285 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-02-06 19:44:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:44:40,732 INFO L93 Difference]: Finished difference Result 238 states and 297 transitions. [2025-02-06 19:44:40,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 297 transitions. [2025-02-06 19:44:40,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2025-02-06 19:44:40,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 238 states and 297 transitions. [2025-02-06 19:44:40,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 238 [2025-02-06 19:44:40,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 238 [2025-02-06 19:44:40,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 297 transitions. [2025-02-06 19:44:40,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:44:40,737 INFO L218 hiAutomatonCegarLoop]: Abstraction has 238 states and 297 transitions. [2025-02-06 19:44:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 297 transitions. [2025-02-06 19:44:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2025-02-06 19:44:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 238 states have (on average 1.2478991596638656) internal successors, (297), 237 states have internal predecessors, (297), 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) [2025-02-06 19:44:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 297 transitions. [2025-02-06 19:44:40,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 238 states and 297 transitions. [2025-02-06 19:44:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 19:44:40,749 INFO L432 stractBuchiCegarLoop]: Abstraction has 238 states and 297 transitions. [2025-02-06 19:44:40,749 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-06 19:44:40,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 238 states and 297 transitions. [2025-02-06 19:44:40,751 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2025-02-06 19:44:40,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:40,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:40,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,752 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:44:40,752 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~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~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__methaneQuery_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret8#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#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~ret23#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:44:40,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash -285825185, now seen corresponding path program 4 times [2025-02-06 19:44:40,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250752860] [2025-02-06 19:44:40,753 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 19:44:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,759 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-02-06 19:44:40,767 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,771 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 19:44:40,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,772 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:40,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:40,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash -331154652, now seen corresponding path program 1 times [2025-02-06 19:44:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980720176] [2025-02-06 19:44:40,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 19:44:40,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 19:44:40,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 19:44:40,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 19:44:40,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 19:44:40,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980720176] [2025-02-06 19:44:40,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980720176] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 19:44:40,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 19:44:40,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 19:44:40,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471205245] [2025-02-06 19:44:40,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 19:44:40,847 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-06 19:44:40,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 19:44:40,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 19:44:40,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 19:44:40,848 INFO L87 Difference]: Start difference. First operand 238 states and 297 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2025-02-06 19:44:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 19:44:40,954 INFO L93 Difference]: Finished difference Result 256 states and 315 transitions. [2025-02-06 19:44:40,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 256 states and 315 transitions. [2025-02-06 19:44:40,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2025-02-06 19:44:40,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 256 states to 256 states and 315 transitions. [2025-02-06 19:44:40,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 256 [2025-02-06 19:44:40,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 256 [2025-02-06 19:44:40,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 256 states and 315 transitions. [2025-02-06 19:44:40,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-06 19:44:40,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 256 states and 315 transitions. [2025-02-06 19:44:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states and 315 transitions. [2025-02-06 19:44:40,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2025-02-06 19:44:40,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 256 states have (on average 1.23046875) internal successors, (315), 255 states have internal predecessors, (315), 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) [2025-02-06 19:44:40,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 315 transitions. [2025-02-06 19:44:40,966 INFO L240 hiAutomatonCegarLoop]: Abstraction has 256 states and 315 transitions. [2025-02-06 19:44:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 19:44:40,967 INFO L432 stractBuchiCegarLoop]: Abstraction has 256 states and 315 transitions. [2025-02-06 19:44:40,967 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-06 19:44:40,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 256 states and 315 transitions. [2025-02-06 19:44:40,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2025-02-06 19:44:40,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-06 19:44:40,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-06 19:44:40,969 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,969 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 19:44:40,969 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret21#1;havoc main_#t~ret21#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-02-06 19:44:40,970 INFO L754 eck$LassoCheckResult]: Loop: "assume true;" "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#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~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~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~ret20#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__methaneQuery_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret8#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret8#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~6#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~ret23#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~6#1 := __utac_acc__Specification1_spec__1_#t~ret23#1;havoc __utac_acc__Specification1_spec__1_#t~ret23#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret23#1, __utac_acc__Specification1_spec__1_#t~ret24#1, __utac_acc__Specification1_spec__1_~tmp~6#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-02-06 19:44:40,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,970 INFO L85 PathProgramCache]: Analyzing trace with hash -285825185, now seen corresponding path program 5 times [2025-02-06 19:44:40,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390232794] [2025-02-06 19:44:40,971 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 19:44:40,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:40,976 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,980 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,980 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 19:44:40,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,981 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:40,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:40,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:40,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:40,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:40,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:40,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:40,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1143299815, now seen corresponding path program 1 times [2025-02-06 19:44:40,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:40,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11748540] [2025-02-06 19:44:40,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:40,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:41,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 19:44:41,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 19:44:41,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,007 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:41,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 19:44:41,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 19:44:41,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:41,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 19:44:41,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1946094793, now seen corresponding path program 1 times [2025-02-06 19:44:41,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 19:44:41,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93601671] [2025-02-06 19:44:41,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 19:44:41,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 19:44:41,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 19:44:41,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 19:44:41,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,043 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:41,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 19:44:41,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 19:44:41,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 19:44:41,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:41,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:41,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,909 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 19:44:41,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 19:44:41,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 19:44:41,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 19:44:41,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 19:44:41,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.02 07:44:41 BoogieIcfgContainer [2025-02-06 19:44:41,963 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-06 19:44:41,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 19:44:41,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 19:44:41,964 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 19:44:41,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 07:44:39" (3/4) ... [2025-02-06 19:44:41,966 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-02-06 19:44:42,005 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 19:44:42,006 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 19:44:42,006 INFO L158 Benchmark]: Toolchain (without parser) took 3271.63ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 60.1MB in the end (delta: 45.4MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2025-02-06 19:44:42,007 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:44:42,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.80ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 87.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 19:44:42,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.55ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 83.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 19:44:42,007 INFO L158 Benchmark]: Boogie Preprocessor took 55.12ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:44:42,008 INFO L158 Benchmark]: IcfgBuilder took 666.62ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 48.6MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 19:44:42,008 INFO L158 Benchmark]: BuchiAutomizer took 2087.13ms. Allocated memory is still 142.6MB. Free memory was 48.6MB in the beginning and 64.2MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:44:42,008 INFO L158 Benchmark]: Witness Printer took 42.02ms. Allocated memory is still 142.6MB. Free memory was 64.2MB in the beginning and 60.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 19:44:42,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.80ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 87.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.55ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 83.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.12ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 666.62ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 48.6MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2087.13ms. Allocated memory is still 142.6MB. Free memory was 48.6MB in the beginning and 64.2MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.02ms. Allocated memory is still 142.6MB. Free memory was 64.2MB in the beginning and 60.1MB in the end (delta: 4.1MB). 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] - GenericResultAtLocation [Line: 597]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 256 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. 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 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 384 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 384 mSDsluCounter, 1842 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1005 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 837 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L459] int retValue_acc ; [L462] retValue_acc = 1 [L463] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L97] CALL startSystem() [L329] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L193] int tmp ; [L196] COND FALSE !(\read(pumpRunning)) [L211] CALL processEnvironment__wrappee__methaneQuery() [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L172] CALL, EXPR isHighWaterLevel() [L307] int retValue_acc ; [L308] int tmp ; [L309] int tmp___0 ; [L313] CALL, EXPR isHighWaterSensorDry() [L584] int retValue_acc ; [L587] COND TRUE waterLevel < 2 [L588] retValue_acc = 1 [L589] return (retValue_acc); [L313] RET, EXPR isHighWaterSensorDry() [L313] tmp = isHighWaterSensorDry() [L315] COND TRUE \read(tmp) [L316] tmp___0 = 0 [L320] retValue_acc = tmp___0 [L321] return (retValue_acc); [L172] RET, EXPR isHighWaterLevel() [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L180] FCALL processEnvironment__wrappee__base() [L211] RET processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification1_spec__1() [L478] int tmp ; [L479] int tmp___0 ; [L483] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L483] RET, EXPR isMethaneLevelCritical() [L483] tmp = isMethaneLevelCritical() [L485] COND FALSE !(\read(tmp)) [L153] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L459] int retValue_acc ; [L462] retValue_acc = 1 [L463] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L97] CALL startSystem() [L329] systemActive = 1 [L97] RET startSystem() [L110] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L193] int tmp ; [L196] COND FALSE !(\read(pumpRunning)) [L211] CALL processEnvironment__wrappee__methaneQuery() [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L172] CALL, EXPR isHighWaterLevel() [L307] int retValue_acc ; [L308] int tmp ; [L309] int tmp___0 ; [L313] CALL, EXPR isHighWaterSensorDry() [L584] int retValue_acc ; [L587] COND TRUE waterLevel < 2 [L588] retValue_acc = 1 [L589] return (retValue_acc); [L313] RET, EXPR isHighWaterSensorDry() [L313] tmp = isHighWaterSensorDry() [L315] COND TRUE \read(tmp) [L316] tmp___0 = 0 [L320] retValue_acc = tmp___0 [L321] return (retValue_acc); [L172] RET, EXPR isHighWaterLevel() [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L180] FCALL processEnvironment__wrappee__base() [L211] RET processEnvironment__wrappee__methaneQuery() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification1_spec__1() [L478] int tmp ; [L479] int tmp___0 ; [L483] CALL, EXPR isMethaneLevelCritical() [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); [L483] RET, EXPR isMethaneLevelCritical() [L483] tmp = isMethaneLevelCritical() [L485] COND FALSE !(\read(tmp)) [L153] RET __utac_acc__Specification1_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-02-06 19:44:42,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)