./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_spec3_product64.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 d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 07:30:38,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 07:30:38,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-09 07:30:38,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 07:30:38,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 07:30:38,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 07:30:38,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 07:30:38,957 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 07:30:38,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 07:30:38,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 07:30:38,958 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 07:30:38,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 07:30:38,959 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 07:30:38,959 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 07:30:38,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 07:30:38,960 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 07:30:38,961 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 07:30:38,961 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 07:30:38,961 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 07:30:38,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 07:30:38,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 07:30:38,961 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 07:30:38,962 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 07:30:38,962 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 -> d436abf98cab5db4fbcf1977ce5628e2227cd7aa643df1d726e32cf2e71cb81f [2025-03-09 07:30:39,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 07:30:39,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 07:30:39,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 07:30:39,209 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 07:30:39,210 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 07:30:39,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2025-03-09 07:30:40,512 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11d1e66e/7300a7565b744072b486c6e09bd09f0b/FLAG911ef6eff [2025-03-09 07:30:40,802 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 07:30:40,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2025-03-09 07:30:40,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11d1e66e/7300a7565b744072b486c6e09bd09f0b/FLAG911ef6eff [2025-03-09 07:30:40,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c11d1e66e/7300a7565b744072b486c6e09bd09f0b [2025-03-09 07:30:40,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 07:30:40,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 07:30:40,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 07:30:40,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 07:30:40,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 07:30:40,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:30:40" (1/1) ... [2025-03-09 07:30:40,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36be5e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:40, skipping insertion in model container [2025-03-09 07:30:40,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 07:30:40" (1/1) ... [2025-03-09 07:30:40,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 07:30:41,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:30:41,081 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 07:30:41,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2025-03-09 07:30:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2025-03-09 07:30:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2025-03-09 07:30:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [435] [2025-03-09 07:30:41,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [539] [2025-03-09 07:30:41,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2025-03-09 07:30:41,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1001] [2025-03-09 07:30:41,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1010] [2025-03-09 07:30:41,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 07:30:41,153 INFO L204 MainTranslator]: Completed translation [2025-03-09 07:30:41,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41 WrapperNode [2025-03-09 07:30:41,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 07:30:41,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 07:30:41,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 07:30:41,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 07:30:41,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,223 INFO L138 Inliner]: procedures = 59, calls = 109, calls flagged for inlining = 62, calls inlined = 182, statements flattened = 1240 [2025-03-09 07:30:41,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 07:30:41,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 07:30:41,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 07:30:41,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 07:30:41,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,249 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 07:30:41,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 07:30:41,270 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 07:30:41,270 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 07:30:41,270 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 07:30:41,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (1/1) ... [2025-03-09 07:30:41,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 07:30:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 07:30:41,306 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 07:30:41,308 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 07:30:41,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 07:30:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 07:30:41,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 07:30:41,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 07:30:41,395 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 07:30:41,396 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~5#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L998-1: main_#res#1 := main_~retValue_acc~13#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L536-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~9#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-1: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-3: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L513-5: getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L84-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-25: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-27: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-29: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-31: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-33: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L481-35: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-13: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-15: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-17: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-19: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-21: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L318-23: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,134 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-19: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-21: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-23: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-25: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-27: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L254-29: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-13: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-15: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-17: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-19: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-21: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L527-23: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; [2025-03-09 07:30:42,184 INFO L? ?]: Removed 319 outVars from TransFormulas that were not future-live. [2025-03-09 07:30:42,184 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 07:30:42,198 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 07:30:42,199 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 07:30:42,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:42 BoogieIcfgContainer [2025-03-09 07:30:42,199 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 07:30:42,203 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 07:30:42,203 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 07:30:42,210 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 07:30:42,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:42,210 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 07:30:40" (1/3) ... [2025-03-09 07:30:42,211 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5463f8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:30:42, skipping insertion in model container [2025-03-09 07:30:42,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:42,211 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 07:30:41" (2/3) ... [2025-03-09 07:30:42,211 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5463f8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 07:30:42, skipping insertion in model container [2025-03-09 07:30:42,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 07:30:42,211 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:42" (3/3) ... [2025-03-09 07:30:42,212 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2025-03-09 07:30:42,254 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 07:30:42,254 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 07:30:42,254 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 07:30:42,254 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 07:30:42,254 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 07:30:42,255 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 07:30:42,255 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 07:30:42,255 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 07:30:42,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.348623853211009) internal successors, (441), 327 states have internal predecessors, (441), 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 07:30:42,287 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2025-03-09 07:30:42,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:42,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:42,296 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,296 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,296 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 07:30:42,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 328 states, 327 states have (on average 1.348623853211009) internal successors, (441), 327 states have internal predecessors, (441), 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 07:30:42,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 215 [2025-03-09 07:30:42,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:42,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:42,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,316 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:42,316 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:42,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:42,321 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 1 times [2025-03-09 07:30:42,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:42,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804060630] [2025-03-09 07:30:42,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:42,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:42,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:42,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:42,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,392 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:42,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:42,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:42,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:42,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -465215836, now seen corresponding path program 1 times [2025-03-09 07:30:42,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:42,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723729345] [2025-03-09 07:30:42,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:42,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 07:30:42,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 07:30:42,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,425 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:42,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 07:30:42,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 07:30:42,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:42,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1988970663, now seen corresponding path program 1 times [2025-03-09 07:30:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:42,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017585403] [2025-03-09 07:30:42,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:42,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:42,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 07:30:42,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 07:30:42,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:42,626 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 07:30:42,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:42,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017585403] [2025-03-09 07:30:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017585403] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:42,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:42,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 07:30:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852744257] [2025-03-09 07:30:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:42,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:42,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 07:30:42,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 07:30:42,712 INFO L87 Difference]: Start difference. First operand has 328 states, 327 states have (on average 1.348623853211009) internal successors, (441), 327 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:30:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:42,835 INFO L93 Difference]: Finished difference Result 702 states and 933 transitions. [2025-03-09 07:30:42,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 702 states and 933 transitions. [2025-03-09 07:30:42,842 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 459 [2025-03-09 07:30:42,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 702 states to 672 states and 903 transitions. [2025-03-09 07:30:42,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 672 [2025-03-09 07:30:42,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 672 [2025-03-09 07:30:42,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 672 states and 903 transitions. [2025-03-09 07:30:42,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:42,855 INFO L218 hiAutomatonCegarLoop]: Abstraction has 672 states and 903 transitions. [2025-03-09 07:30:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states and 903 transitions. [2025-03-09 07:30:42,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 366. [2025-03-09 07:30:42,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 366 states have (on average 1.3442622950819672) internal successors, (492), 365 states have internal predecessors, (492), 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 07:30:42,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 492 transitions. [2025-03-09 07:30:42,893 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 492 transitions. [2025-03-09 07:30:42,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 07:30:42,896 INFO L432 stractBuchiCegarLoop]: Abstraction has 366 states and 492 transitions. [2025-03-09 07:30:42,896 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-09 07:30:42,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 492 transitions. [2025-03-09 07:30:42,898 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2025-03-09 07:30:42,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:42,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:42,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:42,899 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:42,899 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1;" "processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1;" "assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:42,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:42,900 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 2 times [2025-03-09 07:30:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:42,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814929391] [2025-03-09 07:30:42,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 07:30:42,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:42,905 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:42,912 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:42,916 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:30:42,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,917 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:42,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:42,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:42,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:42,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:42,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1844537204, now seen corresponding path program 1 times [2025-03-09 07:30:42,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:42,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008268728] [2025-03-09 07:30:42,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:42,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 07:30:42,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 07:30:42,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:42,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:42,944 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 07:30:42,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:42,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008268728] [2025-03-09 07:30:42,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008268728] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:42,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:42,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 07:30:42,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124366458] [2025-03-09 07:30:42,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:42,945 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:30:42,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:42,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 07:30:42,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 07:30:42,946 INFO L87 Difference]: Start difference. First operand 366 states and 492 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:30:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:43,109 INFO L93 Difference]: Finished difference Result 371 states and 474 transitions. [2025-03-09 07:30:43,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 474 transitions. [2025-03-09 07:30:43,113 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2025-03-09 07:30:43,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 371 states and 474 transitions. [2025-03-09 07:30:43,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 371 [2025-03-09 07:30:43,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 371 [2025-03-09 07:30:43,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 371 states and 474 transitions. [2025-03-09 07:30:43,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:43,118 INFO L218 hiAutomatonCegarLoop]: Abstraction has 371 states and 474 transitions. [2025-03-09 07:30:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states and 474 transitions. [2025-03-09 07:30:43,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2025-03-09 07:30:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 371 states have (on average 1.2776280323450135) internal successors, (474), 370 states have internal predecessors, (474), 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 07:30:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 474 transitions. [2025-03-09 07:30:43,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 371 states and 474 transitions. [2025-03-09 07:30:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 07:30:43,134 INFO L432 stractBuchiCegarLoop]: Abstraction has 371 states and 474 transitions. [2025-03-09 07:30:43,134 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-03-09 07:30:43,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 371 states and 474 transitions. [2025-03-09 07:30:43,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2025-03-09 07:30:43,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:43,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:43,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,137 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:43,137 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:43,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,137 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 3 times [2025-03-09 07:30:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730876530] [2025-03-09 07:30:43,138 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 07:30:43,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,142 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:43,146 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 07:30:43,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,146 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:43,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:43,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:43,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,154 INFO L85 PathProgramCache]: Analyzing trace with hash -989498240, now seen corresponding path program 1 times [2025-03-09 07:30:43,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761432783] [2025-03-09 07:30:43,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:43,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:43,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:43,210 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 07:30:43,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:43,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761432783] [2025-03-09 07:30:43,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761432783] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:43,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:43,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 07:30:43,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245801509] [2025-03-09 07:30:43,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:43,211 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:30:43,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:43,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 07:30:43,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 07:30:43,212 INFO L87 Difference]: Start difference. First operand 371 states and 474 transitions. cyclomatic complexity: 106 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 07:30:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:43,310 INFO L93 Difference]: Finished difference Result 389 states and 492 transitions. [2025-03-09 07:30:43,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 492 transitions. [2025-03-09 07:30:43,312 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 269 [2025-03-09 07:30:43,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 389 states and 492 transitions. [2025-03-09 07:30:43,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 389 [2025-03-09 07:30:43,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 389 [2025-03-09 07:30:43,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 389 states and 492 transitions. [2025-03-09 07:30:43,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:43,320 INFO L218 hiAutomatonCegarLoop]: Abstraction has 389 states and 492 transitions. [2025-03-09 07:30:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states and 492 transitions. [2025-03-09 07:30:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2025-03-09 07:30:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 389 states have (on average 1.2647814910025708) internal successors, (492), 388 states have internal predecessors, (492), 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 07:30:43,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 492 transitions. [2025-03-09 07:30:43,337 INFO L240 hiAutomatonCegarLoop]: Abstraction has 389 states and 492 transitions. [2025-03-09 07:30:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 07:30:43,338 INFO L432 stractBuchiCegarLoop]: Abstraction has 389 states and 492 transitions. [2025-03-09 07:30:43,338 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-03-09 07:30:43,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 389 states and 492 transitions. [2025-03-09 07:30:43,342 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 269 [2025-03-09 07:30:43,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:43,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:43,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,342 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,343 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:43,343 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:43,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,343 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 4 times [2025-03-09 07:30:43,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819778460] [2025-03-09 07:30:43,345 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 07:30:43,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,350 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-03-09 07:30:43,358 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,358 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 07:30:43,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,358 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:43,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:43,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:43,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 2025605378, now seen corresponding path program 1 times [2025-03-09 07:30:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804899550] [2025-03-09 07:30:43,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:43,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:43,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:43,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:43,433 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 07:30:43,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:43,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804899550] [2025-03-09 07:30:43,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804899550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:43,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:43,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 07:30:43,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766759332] [2025-03-09 07:30:43,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:43,434 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:30:43,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:43,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 07:30:43,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 07:30:43,434 INFO L87 Difference]: Start difference. First operand 389 states and 492 transitions. cyclomatic complexity: 106 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 07:30:43,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:43,592 INFO L93 Difference]: Finished difference Result 416 states and 519 transitions. [2025-03-09 07:30:43,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 416 states and 519 transitions. [2025-03-09 07:30:43,594 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 287 [2025-03-09 07:30:43,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 416 states to 416 states and 519 transitions. [2025-03-09 07:30:43,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 416 [2025-03-09 07:30:43,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 416 [2025-03-09 07:30:43,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 416 states and 519 transitions. [2025-03-09 07:30:43,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:43,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 416 states and 519 transitions. [2025-03-09 07:30:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states and 519 transitions. [2025-03-09 07:30:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2025-03-09 07:30:43,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 416 states have (on average 1.2475961538461537) internal successors, (519), 415 states have internal predecessors, (519), 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 07:30:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 519 transitions. [2025-03-09 07:30:43,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 416 states and 519 transitions. [2025-03-09 07:30:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 07:30:43,608 INFO L432 stractBuchiCegarLoop]: Abstraction has 416 states and 519 transitions. [2025-03-09 07:30:43,608 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-03-09 07:30:43,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 416 states and 519 transitions. [2025-03-09 07:30:43,611 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 287 [2025-03-09 07:30:43,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:43,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:43,611 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,611 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:43,611 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:43,612 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~11#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:43,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,612 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 5 times [2025-03-09 07:30:43,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557145582] [2025-03-09 07:30:43,612 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 07:30:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,616 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:43,617 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,617 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 07:30:43,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,618 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:43,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:43,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:43,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:43,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash -696095233, now seen corresponding path program 1 times [2025-03-09 07:30:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866673035] [2025-03-09 07:30:43,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:43,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:43,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:43,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,627 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:43,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 07:30:43,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 07:30:43,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:43,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:43,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:43,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1315724438, now seen corresponding path program 1 times [2025-03-09 07:30:43,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:43,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076875468] [2025-03-09 07:30:43,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:43,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:43,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 07:30:43,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 07:30:43,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:43,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:43,733 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 07:30:43,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:43,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076875468] [2025-03-09 07:30:43,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076875468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:43,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:43,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 07:30:43,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334431122] [2025-03-09 07:30:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:43,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:43,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 07:30:43,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 07:30:43,837 INFO L87 Difference]: Start difference. First operand 416 states and 519 transitions. cyclomatic complexity: 106 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 07:30:43,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:43,969 INFO L93 Difference]: Finished difference Result 825 states and 1019 transitions. [2025-03-09 07:30:43,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 825 states and 1019 transitions. [2025-03-09 07:30:43,973 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 574 [2025-03-09 07:30:43,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 825 states to 825 states and 1019 transitions. [2025-03-09 07:30:43,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 825 [2025-03-09 07:30:43,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 825 [2025-03-09 07:30:43,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 825 states and 1019 transitions. [2025-03-09 07:30:43,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:43,978 INFO L218 hiAutomatonCegarLoop]: Abstraction has 825 states and 1019 transitions. [2025-03-09 07:30:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states and 1019 transitions. [2025-03-09 07:30:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2025-03-09 07:30:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 825 states have (on average 1.2351515151515151) internal successors, (1019), 824 states have internal predecessors, (1019), 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 07:30:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1019 transitions. [2025-03-09 07:30:43,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 825 states and 1019 transitions. [2025-03-09 07:30:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 07:30:44,002 INFO L432 stractBuchiCegarLoop]: Abstraction has 825 states and 1019 transitions. [2025-03-09 07:30:44,002 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-03-09 07:30:44,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 825 states and 1019 transitions. [2025-03-09 07:30:44,005 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 574 [2025-03-09 07:30:44,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:44,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:44,008 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:44,008 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:44,008 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:44,009 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret54#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret54#1;havoc __utac_acc__Specification3_spec__1_#t~ret54#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:44,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 6 times [2025-03-09 07:30:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:44,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635296785] [2025-03-09 07:30:44,009 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 07:30:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:44,014 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:44,019 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:44,020 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-09 07:30:44,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:44,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:44,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:44,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:44,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -487113344, now seen corresponding path program 1 times [2025-03-09 07:30:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:44,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981791403] [2025-03-09 07:30:44,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:44,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:44,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 07:30:44,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 07:30:44,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 07:30:44,081 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 07:30:44,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 07:30:44,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981791403] [2025-03-09 07:30:44,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981791403] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 07:30:44,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 07:30:44,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 07:30:44,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128366918] [2025-03-09 07:30:44,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 07:30:44,083 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-03-09 07:30:44,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 07:30:44,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 07:30:44,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 07:30:44,083 INFO L87 Difference]: Start difference. First operand 825 states and 1019 transitions. cyclomatic complexity: 199 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 07:30:44,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 07:30:44,169 INFO L93 Difference]: Finished difference Result 825 states and 1001 transitions. [2025-03-09 07:30:44,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 825 states and 1001 transitions. [2025-03-09 07:30:44,173 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 574 [2025-03-09 07:30:44,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 825 states to 825 states and 1001 transitions. [2025-03-09 07:30:44,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 825 [2025-03-09 07:30:44,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 825 [2025-03-09 07:30:44,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 825 states and 1001 transitions. [2025-03-09 07:30:44,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-09 07:30:44,180 INFO L218 hiAutomatonCegarLoop]: Abstraction has 825 states and 1001 transitions. [2025-03-09 07:30:44,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states and 1001 transitions. [2025-03-09 07:30:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2025-03-09 07:30:44,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 825 states have (on average 1.2133333333333334) internal successors, (1001), 824 states have internal predecessors, (1001), 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 07:30:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1001 transitions. [2025-03-09 07:30:44,206 INFO L240 hiAutomatonCegarLoop]: Abstraction has 825 states and 1001 transitions. [2025-03-09 07:30:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 07:30:44,207 INFO L432 stractBuchiCegarLoop]: Abstraction has 825 states and 1001 transitions. [2025-03-09 07:30:44,207 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-03-09 07:30:44,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 825 states and 1001 transitions. [2025-03-09 07:30:44,213 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 574 [2025-03-09 07:30:44,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 07:30:44,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 07:30:44,214 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:44,216 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 07:30:44,216 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret52#1;havoc main_#t~ret52#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-03-09 07:30:44,216 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~11#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret53#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~11#1 := __utac_acc__Specification3_spec__1_#t~ret53#1;havoc __utac_acc__Specification3_spec__1_#t~ret53#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret54#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret54#1;havoc __utac_acc__Specification3_spec__1_#t~ret54#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_#t~ret54#1, __utac_acc__Specification3_spec__1_#t~ret55#1, __utac_acc__Specification3_spec__1_~tmp~11#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-03-09 07:30:44,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash -556469268, now seen corresponding path program 7 times [2025-03-09 07:30:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143832194] [2025-03-09 07:30:44,217 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 07:30:44,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:44,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:44,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:44,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,246 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:44,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:44,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:44,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:44,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1066903325, now seen corresponding path program 1 times [2025-03-09 07:30:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:44,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609602036] [2025-03-09 07:30:44,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:44,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 07:30:44,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 07:30:44,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,266 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:44,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 07:30:44,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 07:30:44,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:44,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 07:30:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1691275832, now seen corresponding path program 1 times [2025-03-09 07:30:44,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 07:30:44,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887822422] [2025-03-09 07:30:44,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 07:30:44,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 07:30:44,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 07:30:44,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 07:30:44,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,285 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:44,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 07:30:44,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 07:30:44,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:44,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:44,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 07:30:45,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:45,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:45,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:45,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:45,167 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 07:30:45,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 07:30:45,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 07:30:45,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 07:30:45,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 07:30:45,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 07:30:45 BoogieIcfgContainer [2025-03-09 07:30:45,227 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 07:30:45,231 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 07:30:45,231 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 07:30:45,231 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 07:30:45,232 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 07:30:42" (3/4) ... [2025-03-09 07:30:45,233 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 07:30:45,285 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 07:30:45,285 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 07:30:45,286 INFO L158 Benchmark]: Toolchain (without parser) took 4455.53ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 105.9MB in the beginning and 131.3MB in the end (delta: -25.4MB). Peak memory consumption was 133.6MB. Max. memory is 16.1GB. [2025-03-09 07:30:45,286 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:30:45,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.16ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 87.0MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 07:30:45,287 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.39ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 82.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 07:30:45,287 INFO L158 Benchmark]: Boogie Preprocessor took 46.20ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 77.6MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:30:45,287 INFO L158 Benchmark]: IcfgBuilder took 932.04ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 91.3MB in the end (delta: -13.6MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2025-03-09 07:30:45,287 INFO L158 Benchmark]: BuchiAutomizer took 3023.96ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 91.3MB in the beginning and 135.0MB in the end (delta: -43.7MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. [2025-03-09 07:30:45,287 INFO L158 Benchmark]: Witness Printer took 54.75ms. Allocated memory is still 302.0MB. Free memory was 135.0MB in the beginning and 131.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 07:30:45,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.16ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 87.0MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.39ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 82.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.20ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 77.6MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 932.04ms. Allocated memory is still 142.6MB. Free memory was 77.6MB in the beginning and 91.3MB in the end (delta: -13.6MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3023.96ms. Allocated memory was 142.6MB in the beginning and 302.0MB in the end (delta: 159.4MB). Free memory was 91.3MB in the beginning and 135.0MB in the end (delta: -43.7MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. * Witness Printer took 54.75ms. Allocated memory is still 302.0MB. Free memory was 135.0MB in the beginning and 131.3MB in the end (delta: 3.7MB). 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [435] - GenericResultAtLocation [Line: 539]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [539] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] - GenericResultAtLocation [Line: 1001]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1001] - GenericResultAtLocation [Line: 1010]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [1010] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 825 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.4s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 306 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, 1345 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1345 mSDsluCounter, 6718 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4623 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 626 IncrementalHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 2095 mSDtfsCounter, 626 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L437] int waterLevel = 1; [L438] int methaneLevelCritical = 0; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L517] int retValue_acc ; [L520] COND TRUE waterLevel < 2 [L521] retValue_acc = 1 [L522] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification3_spec__1() [L1012] int tmp ; [L1013] int tmp___0 ; [L1014] int tmp___1 ; [L1018] CALL, EXPR isMethaneLevelCritical() [L476] int retValue_acc ; [L479] retValue_acc = methaneLevelCritical [L480] return (retValue_acc); [L1018] RET, EXPR isMethaneLevelCritical() [L1018] tmp = isMethaneLevelCritical() [L1020] COND FALSE !(\read(tmp)) [L1024] CALL, EXPR getWaterLevel() [L508] int retValue_acc ; [L511] retValue_acc = waterLevel [L512] return (retValue_acc); [L1024] RET, EXPR getWaterLevel() [L1024] tmp___0 = getWaterLevel() [L1026] COND FALSE !(tmp___0 == 2) [L123] RET __utac_acc__Specification3_spec__1() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-03-09 07:30:45,312 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)