./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 07:31:41,427 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 07:31:41,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-09 07:31:41,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 07:31:41,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 07:31:41,493 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 07:31:41,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 07:31:41,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 07:31:41,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 07:31:41,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 07:31:41,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 07:31:41,517 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 07:31:41,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 07:31:41,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 07:31:41,518 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 07:31:41,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 07:31:41,518 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 07:31:41,518 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2025-03-09 07:31:41,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 07:31:41,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 07:31:41,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 07:31:41,775 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 07:31:41,775 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 07:31:41,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2025-03-09 07:31:42,952 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec0acdc7/565650f4a2e841df8c4fa4b2ab30dab4/FLAG3b935d5d7 [2025-03-09 07:31:43,214 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 07:31:43,215 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2025-03-09 07:31:43,231 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec0acdc7/565650f4a2e841df8c4fa4b2ab30dab4/FLAG3b935d5d7 [2025-03-09 07:31:43,533 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ec0acdc7/565650f4a2e841df8c4fa4b2ab30dab4 [2025-03-09 07:31:43,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 07:31:43,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 07:31:43,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 07:31:43,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 07:31:43,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 07:31:43,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8c8669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43, skipping insertion in model container [2025-03-09 07:31:43,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 07:31:43,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:31:43,741 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 07:31:43,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2025-03-09 07:31:43,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] [2025-03-09 07:31:43,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] [2025-03-09 07:31:43,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:31:43,828 INFO L204 MainTranslator]: Completed translation [2025-03-09 07:31:43,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43 WrapperNode [2025-03-09 07:31:43,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 07:31:43,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 07:31:43,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 07:31:43,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 07:31:43,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,875 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 54, calls inlined = 68, statements flattened = 443 [2025-03-09 07:31:43,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 07:31:43,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 07:31:43,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 07:31:43,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 07:31:43,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,889 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,907 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 07:31:43,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,918 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 07:31:43,930 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 07:31:43,933 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 07:31:43,934 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 07:31:43,934 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (1/1) ... [2025-03-09 07:31:43,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:31:43,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:31:43,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 07:31:43,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-09 07:31:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 07:31:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 07:31:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 07:31:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 07:31:44,040 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 07:31:44,041 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 07:31:44,367 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L878-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-7: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-9: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L713-11: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L963-1: valid_product_#res#1 := valid_product_~retValue_acc~11#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L864-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L864-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L864-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-1: main_#res#1 := main_~retValue_acc~3#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L832-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L832-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L832-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L768-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L768-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L768-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L704-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L704-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-09 07:31:44,368 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L704-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~4#1; [2025-03-09 07:31:44,395 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2025-03-09 07:31:44,395 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 07:31:44,402 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 07:31:44,403 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 07:31:44,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:31:44 BoogieIcfgContainer [2025-03-09 07:31:44,403 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 07:31:44,404 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 07:31:44,404 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 07:31:44,407 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 07:31:44,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:31:44,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 07:31:43" (1/3) ... [2025-03-09 07:31:44,408 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38594b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:31:44, skipping insertion in model container [2025-03-09 07:31:44,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:31:44,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:31:43" (2/3) ... [2025-03-09 07:31:44,408 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38594b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:31:44, skipping insertion in model container [2025-03-09 07:31:44,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:31:44,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:31:44" (3/3) ... [2025-03-09 07:31:44,409 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2025-03-09 07:31:44,451 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 07:31:44,451 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 07:31:44,451 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 07:31:44,451 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 07:31:44,451 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 07:31:44,451 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 07:31:44,451 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 07:31:44,451 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 07:31:44,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.3488372093023255) internal successors, (174), 129 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:44,469 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2025-03-09 07:31:44,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:44,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:44,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,476 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 07:31:44,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 130 states, 129 states have (on average 1.3488372093023255) internal successors, (174), 129 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:44,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2025-03-09 07:31:44,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:44,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:44,481 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,484 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:31:44,484 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet28#1;test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:31:44,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1849691238, now seen corresponding path program 1 times [2025-03-09 07:31:44,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:44,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135461295] [2025-03-09 07:31:44,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:44,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:44,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:44,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:44,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,551 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:44,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:44,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:44,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:44,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:44,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1215134538, now seen corresponding path program 1 times [2025-03-09 07:31:44,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:44,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976314280] [2025-03-09 07:31:44,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:44,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:44,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 07:31:44,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 07:31:44,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,594 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:44,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 07:31:44,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 07:31:44,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:44,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -278061853, now seen corresponding path program 1 times [2025-03-09 07:31:44,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:44,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582750919] [2025-03-09 07:31:44,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:44,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:44,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 07:31:44,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 07:31:44,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:31:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:31:44,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:31:44,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582750919] [2025-03-09 07:31:44,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582750919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:31:44,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:31:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 07:31:44,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456127856] [2025-03-09 07:31:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:31:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:31:44,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:31:44,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:31:44,816 INFO L87 Difference]: Start difference. First operand has 130 states, 129 states have (on average 1.3488372093023255) internal successors, (174), 129 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:31:44,852 INFO L93 Difference]: Finished difference Result 239 states and 313 transitions. [2025-03-09 07:31:44,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 313 transitions. [2025-03-09 07:31:44,857 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 148 [2025-03-09 07:31:44,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 219 states and 292 transitions. [2025-03-09 07:31:44,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2025-03-09 07:31:44,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2025-03-09 07:31:44,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 292 transitions. [2025-03-09 07:31:44,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:31:44,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 219 states and 292 transitions. [2025-03-09 07:31:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 292 transitions. [2025-03-09 07:31:44,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2025-03-09 07:31:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 216 states have (on average 1.3333333333333333) internal successors, (288), 215 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 288 transitions. [2025-03-09 07:31:44,891 INFO L240 hiAutomatonCegarLoop]: Abstraction has 216 states and 288 transitions. [2025-03-09 07:31:44,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:31:44,894 INFO L432 stractBuchiCegarLoop]: Abstraction has 216 states and 288 transitions. [2025-03-09 07:31:44,894 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 07:31:44,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 216 states and 288 transitions. [2025-03-09 07:31:44,896 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 148 [2025-03-09 07:31:44,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:44,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:44,896 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,896 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:44,897 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:31:44,897 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet28#1;test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:31:44,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1849691238, now seen corresponding path program 2 times [2025-03-09 07:31:44,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:44,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876793490] [2025-03-09 07:31:44,897 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 07:31:44,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:44,902 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:44,905 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:44,906 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:31:44,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,906 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:44,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:44,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:44,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:44,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:44,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:44,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1560171317, now seen corresponding path program 1 times [2025-03-09 07:31:44,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:44,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864747507] [2025-03-09 07:31:44,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:44,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:44,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 07:31:44,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 07:31:44,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:44,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:31:44,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:31:44,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:31:44,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864747507] [2025-03-09 07:31:44,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864747507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:31:44,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:31:44,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 07:31:44,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121384884] [2025-03-09 07:31:44,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:31:44,950 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:31:44,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:31:44,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:31:44,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:31:44,951 INFO L87 Difference]: Start difference. First operand 216 states and 288 transitions. cyclomatic complexity: 76 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:31:45,020 INFO L93 Difference]: Finished difference Result 337 states and 438 transitions. [2025-03-09 07:31:45,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 438 transitions. [2025-03-09 07:31:45,022 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 237 [2025-03-09 07:31:45,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 337 states and 438 transitions. [2025-03-09 07:31:45,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 337 [2025-03-09 07:31:45,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 337 [2025-03-09 07:31:45,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 337 states and 438 transitions. [2025-03-09 07:31:45,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:31:45,026 INFO L218 hiAutomatonCegarLoop]: Abstraction has 337 states and 438 transitions. [2025-03-09 07:31:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states and 438 transitions. [2025-03-09 07:31:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2025-03-09 07:31:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 337 states have (on average 1.2997032640949555) internal successors, (438), 336 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 438 transitions. [2025-03-09 07:31:45,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 337 states and 438 transitions. [2025-03-09 07:31:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:31:45,036 INFO L432 stractBuchiCegarLoop]: Abstraction has 337 states and 438 transitions. [2025-03-09 07:31:45,036 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 07:31:45,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 337 states and 438 transitions. [2025-03-09 07:31:45,038 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 237 [2025-03-09 07:31:45,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:45,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:45,038 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:45,039 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:45,039 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:31:45,039 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet28#1;test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1;" "isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1;" "assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:31:45,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1849691238, now seen corresponding path program 3 times [2025-03-09 07:31:45,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907336217] [2025-03-09 07:31:45,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 07:31:45,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,048 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:45,054 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,057 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 07:31:45,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,058 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:45,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:45,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:45,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 971244644, now seen corresponding path program 1 times [2025-03-09 07:31:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587555946] [2025-03-09 07:31:45,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 07:31:45,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 07:31:45,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:31:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:31:45,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:31:45,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587555946] [2025-03-09 07:31:45,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587555946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:31:45,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:31:45,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 07:31:45,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994084053] [2025-03-09 07:31:45,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:31:45,137 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:31:45,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:31:45,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 07:31:45,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 07:31:45,137 INFO L87 Difference]: Start difference. First operand 337 states and 438 transitions. cyclomatic complexity: 105 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:31:45,185 INFO L93 Difference]: Finished difference Result 349 states and 450 transitions. [2025-03-09 07:31:45,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 349 states and 450 transitions. [2025-03-09 07:31:45,187 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 245 [2025-03-09 07:31:45,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 349 states to 349 states and 450 transitions. [2025-03-09 07:31:45,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 349 [2025-03-09 07:31:45,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 349 [2025-03-09 07:31:45,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 349 states and 450 transitions. [2025-03-09 07:31:45,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:31:45,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 349 states and 450 transitions. [2025-03-09 07:31:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states and 450 transitions. [2025-03-09 07:31:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2025-03-09 07:31:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 349 states have (on average 1.2893982808022924) internal successors, (450), 348 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 450 transitions. [2025-03-09 07:31:45,202 INFO L240 hiAutomatonCegarLoop]: Abstraction has 349 states and 450 transitions. [2025-03-09 07:31:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 07:31:45,203 INFO L432 stractBuchiCegarLoop]: Abstraction has 349 states and 450 transitions. [2025-03-09 07:31:45,203 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 07:31:45,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 349 states and 450 transitions. [2025-03-09 07:31:45,205 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 245 [2025-03-09 07:31:45,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:45,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:45,205 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:45,205 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:45,205 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:31:45,206 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet28#1;test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1;" "isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1;" "assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:31:45,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1849691238, now seen corresponding path program 4 times [2025-03-09 07:31:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063343799] [2025-03-09 07:31:45,206 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 07:31:45,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,211 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 8 statements into 2 equivalence classes. [2025-03-09 07:31:45,215 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,215 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 07:31:45,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,215 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:45,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:45,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:45,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1558050658, now seen corresponding path program 1 times [2025-03-09 07:31:45,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507288325] [2025-03-09 07:31:45,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:45,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 07:31:45,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 07:31:45,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:31:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 07:31:45,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:31:45,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507288325] [2025-03-09 07:31:45,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507288325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:31:45,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:31:45,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 07:31:45,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588589756] [2025-03-09 07:31:45,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:31:45,275 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:31:45,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:31:45,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 07:31:45,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 07:31:45,275 INFO L87 Difference]: Start difference. First operand 349 states and 450 transitions. cyclomatic complexity: 105 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:31:45,364 INFO L93 Difference]: Finished difference Result 662 states and 836 transitions. [2025-03-09 07:31:45,364 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 662 states and 836 transitions. [2025-03-09 07:31:45,369 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 470 [2025-03-09 07:31:45,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 662 states to 662 states and 836 transitions. [2025-03-09 07:31:45,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 662 [2025-03-09 07:31:45,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 662 [2025-03-09 07:31:45,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 662 states and 836 transitions. [2025-03-09 07:31:45,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:31:45,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 662 states and 836 transitions. [2025-03-09 07:31:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states and 836 transitions. [2025-03-09 07:31:45,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2025-03-09 07:31:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 662 states have (on average 1.2628398791540785) internal successors, (836), 661 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:31:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 836 transitions. [2025-03-09 07:31:45,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 662 states and 836 transitions. [2025-03-09 07:31:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 07:31:45,396 INFO L432 stractBuchiCegarLoop]: Abstraction has 662 states and 836 transitions. [2025-03-09 07:31:45,397 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-09 07:31:45,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 662 states and 836 transitions. [2025-03-09 07:31:45,399 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 470 [2025-03-09 07:31:45,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:31:45,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:31:45,400 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:31:45,400 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] [2025-03-09 07:31:45,400 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:31:45,400 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet28#1;test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~9#1;" "isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~9#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1;" "assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1;" "processEnvironment_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret32#1;havoc processEnvironment_#t~ret32#1;" "assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1;" "__utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:31:45,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1849691238, now seen corresponding path program 5 times [2025-03-09 07:31:45,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444589138] [2025-03-09 07:31:45,401 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 07:31:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,405 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:45,409 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,410 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:31:45,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,410 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:45,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:45,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:45,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:45,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1657513536, now seen corresponding path program 1 times [2025-03-09 07:31:45,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115062050] [2025-03-09 07:31:45,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:45,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 07:31:45,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 07:31:45,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,422 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:45,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-09 07:31:45,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-09 07:31:45,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:45,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:31:45,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1124200071, now seen corresponding path program 1 times [2025-03-09 07:31:45,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:31:45,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585719280] [2025-03-09 07:31:45,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:31:45,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:31:45,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 07:31:45,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 07:31:45,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,441 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:45,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 07:31:45,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 07:31:45,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:45,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:45,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:31:46,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:46,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:46,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:46,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:46,172 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:31:46,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 07:31:46,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 07:31:46,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:31:46,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:31:46,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 07:31:46 BoogieIcfgContainer [2025-03-09 07:31:46,230 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 07:31:46,231 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 07:31:46,231 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 07:31:46,231 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 07:31:46,232 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:31:44" (3/4) ... [2025-03-09 07:31:46,233 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 07:31:46,272 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 07:31:46,272 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 07:31:46,273 INFO L158 Benchmark]: Toolchain (without parser) took 2737.02ms. Allocated memory is still 167.8MB. Free memory was 133.2MB in the beginning and 108.6MB in the end (delta: 24.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2025-03-09 07:31:46,273 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:31:46,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.45ms. Allocated memory is still 167.8MB. Free memory was 133.2MB in the beginning and 114.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 07:31:46,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.72ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 112.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:31:46,274 INFO L158 Benchmark]: Boogie Preprocessor took 50.31ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:31:46,274 INFO L158 Benchmark]: IcfgBuilder took 472.91ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 85.2MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 07:31:46,274 INFO L158 Benchmark]: BuchiAutomizer took 1826.78ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 113.0MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:31:46,274 INFO L158 Benchmark]: Witness Printer took 41.70ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 108.6MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:31:46,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.45ms. Allocated memory is still 167.8MB. Free memory was 133.2MB in the beginning and 114.6MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.72ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 112.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.31ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 472.91ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 85.2MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1826.78ms. Allocated memory is still 167.8MB. Free memory was 85.2MB in the beginning and 113.0MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.70ms. Allocated memory is still 167.8MB. Free memory was 113.0MB in the beginning and 108.6MB in the end (delta: 4.4MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [521] - GenericResultAtLocation [Line: 589]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [589] - GenericResultAtLocation [Line: 786]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [786] - GenericResultAtLocation [Line: 881]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [881] - GenericResultAtLocation [Line: 931]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [931] - GenericResultAtLocation [Line: 966]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [966] * 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 662 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 393 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 393 mSDsluCounter, 1532 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 921 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 611 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L958] int retValue_acc ; [L961] retValue_acc = 1 [L962] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L888] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L578] CALL timeShift() [L607] CALL __utac_acc__Specification5_spec__2() [L897] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] switchedOnBeforeTS = isPumpRunning() [L607] RET __utac_acc__Specification5_spec__2() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L753] int retValue_acc ; [L754] int tmp ; [L755] int tmp___0 ; [L759] CALL, EXPR isHighWaterSensorDry() [L868] int retValue_acc ; [L871] COND TRUE waterLevel < 2 [L872] retValue_acc = 1 [L873] return (retValue_acc); [L759] RET, EXPR isHighWaterSensorDry() [L759] tmp = isHighWaterSensorDry() [L761] COND TRUE \read(tmp) [L762] tmp___0 = 0 [L766] retValue_acc = tmp___0 [L767] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification5_spec__3() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L908] RET, EXPR getWaterLevel() [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L912] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L912] RET, EXPR isPumpRunning() [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) [L624] RET __utac_acc__Specification5_spec__3() [L578] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 533]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L958] int retValue_acc ; [L961] retValue_acc = 1 [L962] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L888] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L578] CALL timeShift() [L607] CALL __utac_acc__Specification5_spec__2() [L897] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] switchedOnBeforeTS = isPumpRunning() [L607] RET __utac_acc__Specification5_spec__2() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L618] CALL processEnvironment() [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L643] CALL, EXPR isHighWaterLevel() [L753] int retValue_acc ; [L754] int tmp ; [L755] int tmp___0 ; [L759] CALL, EXPR isHighWaterSensorDry() [L868] int retValue_acc ; [L871] COND TRUE waterLevel < 2 [L872] retValue_acc = 1 [L873] return (retValue_acc); [L759] RET, EXPR isHighWaterSensorDry() [L759] tmp = isHighWaterSensorDry() [L761] COND TRUE \read(tmp) [L762] tmp___0 = 0 [L766] retValue_acc = tmp___0 [L767] return (retValue_acc); [L643] RET, EXPR isHighWaterLevel() [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L651] FCALL processEnvironment__wrappee__base() [L618] RET processEnvironment() [L624] CALL __utac_acc__Specification5_spec__3() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L908] RET, EXPR getWaterLevel() [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L912] CALL, EXPR isPumpRunning() [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L912] RET, EXPR isPumpRunning() [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) [L624] RET __utac_acc__Specification5_spec__3() [L578] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 07:31:46,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)