./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product47.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 c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 08:45:52,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 08:45:52,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-17 08:45:52,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 08:45:52,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 08:45:52,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-17 08:45:52,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 08:45:52,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 08:45:52,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 08:45:52,266 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 08:45:52,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 08:45:52,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 08:45:52,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 08:45:52,269 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 08:45:52,271 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-17 08:45:52,272 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-17 08:45:52,272 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-17 08:45:52,272 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-17 08:45:52,272 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-17 08:45:52,273 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-17 08:45:52,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 08:45:52,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-17 08:45:52,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 08:45:52,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 08:45:52,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 08:45:52,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 08:45:52,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-17 08:45:52,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-17 08:45:52,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-17 08:45:52,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 08:45:52,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 08:45:52,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 08:45:52,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 08:45:52,280 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-17 08:45:52,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 08:45:52,280 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 08:45:52,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 08:45:52,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 08:45:52,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 08:45:52,282 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-17 08:45:52,283 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea [2024-11-17 08:45:52,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 08:45:52,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 08:45:52,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 08:45:52,629 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 08:45:52,630 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 08:45:52,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2024-11-17 08:45:54,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 08:45:54,271 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 08:45:54,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2024-11-17 08:45:54,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63936ebd4/9656a3d1612449d083432ec5e8cd3a4e/FLAGb6df9d642 [2024-11-17 08:45:54,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63936ebd4/9656a3d1612449d083432ec5e8cd3a4e [2024-11-17 08:45:54,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 08:45:54,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 08:45:54,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 08:45:54,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 08:45:54,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 08:45:54,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:45:54" (1/1) ... [2024-11-17 08:45:54,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1d046f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:54, skipping insertion in model container [2024-11-17 08:45:54,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 08:45:54" (1/1) ... [2024-11-17 08:45:54,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 08:45:55,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:45:55,117 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 08:45:55,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2024-11-17 08:45:55,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] [2024-11-17 08:45:55,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] [2024-11-17 08:45:55,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [125] [2024-11-17 08:45:55,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [225] [2024-11-17 08:45:55,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [440] [2024-11-17 08:45:55,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [508] [2024-11-17 08:45:55,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [874] [2024-11-17 08:45:55,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 08:45:55,229 INFO L204 MainTranslator]: Completed translation [2024-11-17 08:45:55,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55 WrapperNode [2024-11-17 08:45:55,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 08:45:55,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 08:45:55,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 08:45:55,231 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 08:45:55,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,300 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 100, statements flattened = 662 [2024-11-17 08:45:55,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 08:45:55,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 08:45:55,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 08:45:55,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 08:45:55,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,342 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]. [2024-11-17 08:45:55,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 08:45:55,359 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 08:45:55,359 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 08:45:55,359 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 08:45:55,360 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (1/1) ... [2024-11-17 08:45:55,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-17 08:45:55,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 08:45:55,407 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) [2024-11-17 08:45:55,413 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 [2024-11-17 08:45:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 08:45:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 08:45:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 08:45:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 08:45:55,531 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 08:45:55,533 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 08:45:55,980 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L367-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L367-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L367-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L122-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,982 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L222-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L967-1: main_#res#1 := main_~retValue_acc~11#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L422-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; [2024-11-17 08:45:55,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,984 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,986 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,987 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,988 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L176-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; [2024-11-17 08:45:55,988 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:55,988 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; [2024-11-17 08:45:56,013 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-11-17 08:45:56,014 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 08:45:56,031 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 08:45:56,033 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 08:45:56,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:45:56 BoogieIcfgContainer [2024-11-17 08:45:56,034 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 08:45:56,035 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-17 08:45:56,035 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-17 08:45:56,039 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-17 08:45:56,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:45:56,039 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.11 08:45:54" (1/3) ... [2024-11-17 08:45:56,040 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35436c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:45:56, skipping insertion in model container [2024-11-17 08:45:56,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:45:56,041 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 08:45:55" (2/3) ... [2024-11-17 08:45:56,041 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35436c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.11 08:45:56, skipping insertion in model container [2024-11-17 08:45:56,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-17 08:45:56,042 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:45:56" (3/3) ... [2024-11-17 08:45:56,043 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2024-11-17 08:45:56,092 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-17 08:45:56,093 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-17 08:45:56,093 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-17 08:45:56,093 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-17 08:45:56,093 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-17 08:45:56,093 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-17 08:45:56,093 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-17 08:45:56,093 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-17 08:45:56,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 189 states, 188 states have (on average 1.3457446808510638) internal successors, (253), 188 states have internal predecessors, (253), 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) [2024-11-17 08:45:56,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2024-11-17 08:45:56,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:45:56,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:45:56,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:56,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:56,127 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-17 08:45:56,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 189 states, 188 states have (on average 1.3457446808510638) internal successors, (253), 188 states have internal predecessors, (253), 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) [2024-11-17 08:45:56,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2024-11-17 08:45:56,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:45:56,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:45:56,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:56,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:56,141 INFO L745 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 35#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 159#L113true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 166#L106true assume 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; 33#L121true assume true;main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 85#L957true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 133#L934true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 104#L452true [2024-11-17 08:45:56,142 INFO L747 eck$LassoCheckResult]: Loop: 104#L452true assume true; 46#L452-1true assume !false; 17#test_while_0_continue#1true assume true; 6#L454true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 111#L462true assume !(0 != test_~tmp~5#1); 151#L470true havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 48#L472true assume !(0 != test_~tmp___0~2#1); 64#L480true havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 82#L482true assume 0 != test_~tmp___2~0#1; 171#L497true assume { :begin_inline_timeShift } true; 134#L238-2true assume !(0 != ~pumpRunning~0); 105#L245-2true assume !(0 != ~systemActive~0); 177#L253-2true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 87#L175-8true assume true;__utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 66#L61-2true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 164#L75-2true assume true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 179#L255-2true assume true;assume { :end_inline_timeShift } true; 104#L452true [2024-11-17 08:45:56,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1212198730, now seen corresponding path program 1 times [2024-11-17 08:45:56,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:56,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612460024] [2024-11-17 08:45:56,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:56,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:56,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:56,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1143192952, now seen corresponding path program 1 times [2024-11-17 08:45:56,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:56,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126814772] [2024-11-17 08:45:56,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:56,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:56,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1259366735, now seen corresponding path program 1 times [2024-11-17 08:45:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:56,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397549305] [2024-11-17 08:45:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:45:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:45:56,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:45:56,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397549305] [2024-11-17 08:45:56,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397549305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:45:56,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:45:56,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 08:45:56,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155311128] [2024-11-17 08:45:56,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:45:56,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:45:56,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:45:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:45:56,646 INFO L87 Difference]: Start difference. First operand has 189 states, 188 states have (on average 1.3457446808510638) internal successors, (253), 188 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 08:45:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:45:56,724 INFO L93 Difference]: Finished difference Result 358 states and 468 transitions. [2024-11-17 08:45:56,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 358 states and 468 transitions. [2024-11-17 08:45:56,735 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 230 [2024-11-17 08:45:56,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 358 states to 336 states and 445 transitions. [2024-11-17 08:45:56,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 336 [2024-11-17 08:45:56,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 336 [2024-11-17 08:45:56,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 445 transitions. [2024-11-17 08:45:56,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:45:56,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 336 states and 445 transitions. [2024-11-17 08:45:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 445 transitions. [2024-11-17 08:45:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 333. [2024-11-17 08:45:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 333 states have (on average 1.3243243243243243) internal successors, (441), 332 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) [2024-11-17 08:45:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 441 transitions. [2024-11-17 08:45:56,804 INFO L240 hiAutomatonCegarLoop]: Abstraction has 333 states and 441 transitions. [2024-11-17 08:45:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:45:56,808 INFO L425 stractBuchiCegarLoop]: Abstraction has 333 states and 441 transitions. [2024-11-17 08:45:56,810 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-17 08:45:56,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 333 states and 441 transitions. [2024-11-17 08:45:56,813 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 230 [2024-11-17 08:45:56,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:45:56,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:45:56,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:56,818 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] [2024-11-17 08:45:56,818 INFO L745 eck$LassoCheckResult]: Stem: 740#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 617#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 618#L113 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 738#L106 assume 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; 611#L121 assume true;main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 612#L957 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 685#L934 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 708#L452 [2024-11-17 08:45:56,819 INFO L747 eck$LassoCheckResult]: Loop: 708#L452 assume true; 709#L452-1 assume !false; 761#test_while_0_continue#1 assume true; 760#L454 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 758#L462 assume !(0 != test_~tmp~5#1); 756#L470 havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 753#L472 assume !(0 != test_~tmp___0~2#1); 752#L480 havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 751#L482 assume 0 != test_~tmp___2~0#1; 741#L497 assume { :begin_inline_timeShift } true; 731#L238-2 assume !(0 != ~pumpRunning~0); 579#L245-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 710#L296-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 779#L270-5 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 791#L262-11 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 771#L288-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 769#L314-2 assume true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 768#L253-2 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 767#L175-8 assume true;__utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 765#L61-2 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 763#L75-2 assume true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 743#L255-2 assume true;assume { :end_inline_timeShift } true; 708#L452 [2024-11-17 08:45:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1212198730, now seen corresponding path program 2 times [2024-11-17 08:45:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:56,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340887138] [2024-11-17 08:45:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:56,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:56,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:56,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1630658599, now seen corresponding path program 1 times [2024-11-17 08:45:56,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:56,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854184106] [2024-11-17 08:45:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:56,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 08:45:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 08:45:56,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 08:45:56,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854184106] [2024-11-17 08:45:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854184106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 08:45:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 08:45:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 08:45:56,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953158654] [2024-11-17 08:45:56,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 08:45:56,878 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-17 08:45:56,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 08:45:56,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 08:45:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 08:45:56,879 INFO L87 Difference]: Start difference. First operand 333 states and 441 transitions. cyclomatic complexity: 112 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2024-11-17 08:45:56,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 08:45:56,964 INFO L93 Difference]: Finished difference Result 458 states and 583 transitions. [2024-11-17 08:45:56,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 458 states and 583 transitions. [2024-11-17 08:45:56,971 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 325 [2024-11-17 08:45:56,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 458 states to 458 states and 583 transitions. [2024-11-17 08:45:56,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 458 [2024-11-17 08:45:56,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 458 [2024-11-17 08:45:56,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 458 states and 583 transitions. [2024-11-17 08:45:56,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-17 08:45:56,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 458 states and 583 transitions. [2024-11-17 08:45:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states and 583 transitions. [2024-11-17 08:45:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2024-11-17 08:45:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 458 states have (on average 1.2729257641921397) internal successors, (583), 457 states have internal predecessors, (583), 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) [2024-11-17 08:45:56,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 583 transitions. [2024-11-17 08:45:57,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 458 states and 583 transitions. [2024-11-17 08:45:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 08:45:57,004 INFO L425 stractBuchiCegarLoop]: Abstraction has 458 states and 583 transitions. [2024-11-17 08:45:57,006 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-17 08:45:57,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 458 states and 583 transitions. [2024-11-17 08:45:57,008 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 325 [2024-11-17 08:45:57,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-17 08:45:57,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-17 08:45:57,010 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 08:45:57,010 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] [2024-11-17 08:45:57,011 INFO L745 eck$LassoCheckResult]: Stem: 1556#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1413#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret52#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1414#L113 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1550#L106 assume 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; 1402#L121 assume true;main_#t~ret52#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret52#1;havoc main_#t~ret52#1; 1403#L957 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1481#L934 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1508#L452 [2024-11-17 08:45:57,011 INFO L747 eck$LassoCheckResult]: Loop: 1508#L452 assume true; 1509#L452-1 assume !false; 1633#test_while_0_continue#1 assume true; 1632#L454 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet25#1;test_~tmp~5#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 1630#L462 assume !(0 != test_~tmp~5#1); 1628#L470 havoc test_#t~nondet26#1;test_~tmp___0~2#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1424#L472 assume !(0 != test_~tmp___0~2#1); 1395#L480 havoc test_#t~nondet27#1;test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1445#L482 assume 0 != test_~tmp___2~0#1; 1475#L497 assume { :begin_inline_timeShift } true; 1535#L238-2 assume !(0 != ~pumpRunning~0); 1536#L245-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1432#L296-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1433#L270-5 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1390#L215-5 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1391#L220-5 assume true;isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1441#L415-5 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1452#L420-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1440#L421-5 assume true;processEnvironment__wrappee__methaneQuery_#t~ret12#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret12#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1; 1382#L274-5 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1384#L262-10 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1617#L288-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret12#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1488#L314-2 assume true;havoc processEnvironment_#t~ret13#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1610#L253-2 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1611#L175-8 assume true;__utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 1604#L61-2 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1603#L75-2 assume true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1561#L255-2 assume true;assume { :end_inline_timeShift } true; 1508#L452 [2024-11-17 08:45:57,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1212198730, now seen corresponding path program 3 times [2024-11-17 08:45:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506987506] [2024-11-17 08:45:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:57,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:57,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash -930585022, now seen corresponding path program 1 times [2024-11-17 08:45:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:57,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654119366] [2024-11-17 08:45:57,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,064 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:57,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 08:45:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1782268405, now seen corresponding path program 1 times [2024-11-17 08:45:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 08:45:57,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239324472] [2024-11-17 08:45:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 08:45:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 08:45:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 08:45:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:57,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 08:45:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 08:45:58,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.11 08:45:58 BoogieIcfgContainer [2024-11-17 08:45:58,058 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-17 08:45:58,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 08:45:58,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 08:45:58,060 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 08:45:58,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 08:45:56" (3/4) ... [2024-11-17 08:45:58,062 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-17 08:45:58,136 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 08:45:58,136 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 08:45:58,137 INFO L158 Benchmark]: Toolchain (without parser) took 3502.02ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 73.0MB in the beginning and 156.2MB in the end (delta: -83.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:45:58,137 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:45:58,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.88ms. Allocated memory is still 148.9MB. Free memory was 72.8MB in the beginning and 106.9MB in the end (delta: -34.1MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-11-17 08:45:58,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.01ms. Allocated memory is still 148.9MB. Free memory was 106.9MB in the beginning and 103.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:45:58,138 INFO L158 Benchmark]: Boogie Preprocessor took 57.17ms. Allocated memory is still 148.9MB. Free memory was 103.4MB in the beginning and 100.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 08:45:58,140 INFO L158 Benchmark]: IcfgBuilder took 675.46ms. Allocated memory is still 148.9MB. Free memory was 100.6MB in the beginning and 64.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-17 08:45:58,141 INFO L158 Benchmark]: BuchiAutomizer took 2022.62ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 64.9MB in the beginning and 159.3MB in the end (delta: -94.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 08:45:58,141 INFO L158 Benchmark]: Witness Printer took 78.24ms. Allocated memory is still 207.6MB. Free memory was 159.3MB in the beginning and 156.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 08:45:58,142 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 119.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.88ms. Allocated memory is still 148.9MB. Free memory was 72.8MB in the beginning and 106.9MB in the end (delta: -34.1MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.01ms. Allocated memory is still 148.9MB. Free memory was 106.9MB in the beginning and 103.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.17ms. Allocated memory is still 148.9MB. Free memory was 103.4MB in the beginning and 100.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 675.46ms. Allocated memory is still 148.9MB. Free memory was 100.6MB in the beginning and 64.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2022.62ms. Allocated memory was 148.9MB in the beginning and 207.6MB in the end (delta: 58.7MB). Free memory was 64.9MB in the beginning and 159.3MB in the end (delta: -94.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.24ms. Allocated memory is still 207.6MB. Free memory was 159.3MB in the beginning and 156.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [125] - GenericResultAtLocation [Line: 225]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [225] - GenericResultAtLocation [Line: 440]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [440] - GenericResultAtLocation [Line: 508]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [508] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [874] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 458 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 386 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 386 mSDsluCounter, 779 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 458 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 452]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L132] int waterLevel = 1; [L133] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L678] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L875] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L948] int retValue_acc ; [L949] int tmp ; [L953] FCALL select_helpers() [L954] FCALL select_features() [L955] CALL, EXPR valid_product() [L117] int retValue_acc ; [L120] retValue_acc = 1 [L121] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L955] RET, EXPR valid_product() [L955] tmp = valid_product() [L957] COND TRUE \read(tmp) [L959] FCALL setup() [L960] CALL runTest() [L942] CALL test() [L443] int splverifierCounter ; [L444] int tmp ; [L445] int tmp___0 ; [L446] int tmp___1 ; [L447] int tmp___2 ; [L450] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L452] COND TRUE 1 [L454] COND TRUE splverifierCounter < 4 [L460] tmp = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp)) [L470] tmp___0 = __VERIFIER_nondet_int() [L472] COND FALSE !(\read(tmp___0)) [L480] tmp___2 = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp___2) [L497] CALL timeShift() [L238] COND FALSE !(\read(pumpRunning)) [L245] COND TRUE \read(systemActive) [L247] CALL processEnvironment() [L293] int tmp ; [L296] COND FALSE !(\read(pumpRunning)) [L311] CALL processEnvironment__wrappee__methaneQuery() [L267] int tmp ; [L270] COND TRUE ! pumpRunning [L272] CALL, EXPR isHighWaterLevel() [L407] int retValue_acc ; [L408] int tmp ; [L409] int tmp___0 ; [L413] CALL, EXPR isHighWaterSensorDry() [L212] int retValue_acc ; [L215] COND TRUE waterLevel < 2 [L216] retValue_acc = 1 [L217] return (retValue_acc); [L413] RET, EXPR isHighWaterSensorDry() [L413] tmp = isHighWaterSensorDry() [L415] COND TRUE \read(tmp) [L416] tmp___0 = 0 [L420] retValue_acc = tmp___0 [L421] return (retValue_acc); [L272] RET, EXPR isHighWaterLevel() [L272] tmp = isHighWaterLevel() [L274] COND FALSE !(\read(tmp)) [L280] FCALL processEnvironment__wrappee__base() [L311] RET processEnvironment__wrappee__methaneQuery() [L247] RET processEnvironment() [L253] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L171] int retValue_acc ; [L174] retValue_acc = methaneLevelCritical [L175] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L253] RET __utac_acc__Specification1_spec__1() [L497] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 452]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int waterLevel = 1; [L133] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L678] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L875] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L948] int retValue_acc ; [L949] int tmp ; [L953] FCALL select_helpers() [L954] FCALL select_features() [L955] CALL, EXPR valid_product() [L117] int retValue_acc ; [L120] retValue_acc = 1 [L121] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L955] RET, EXPR valid_product() [L955] tmp = valid_product() [L957] COND TRUE \read(tmp) [L959] FCALL setup() [L960] CALL runTest() [L942] CALL test() [L443] int splverifierCounter ; [L444] int tmp ; [L445] int tmp___0 ; [L446] int tmp___1 ; [L447] int tmp___2 ; [L450] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L452] COND TRUE 1 [L454] COND TRUE splverifierCounter < 4 [L460] tmp = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp)) [L470] tmp___0 = __VERIFIER_nondet_int() [L472] COND FALSE !(\read(tmp___0)) [L480] tmp___2 = __VERIFIER_nondet_int() [L482] COND TRUE \read(tmp___2) [L497] CALL timeShift() [L238] COND FALSE !(\read(pumpRunning)) [L245] COND TRUE \read(systemActive) [L247] CALL processEnvironment() [L293] int tmp ; [L296] COND FALSE !(\read(pumpRunning)) [L311] CALL processEnvironment__wrappee__methaneQuery() [L267] int tmp ; [L270] COND TRUE ! pumpRunning [L272] CALL, EXPR isHighWaterLevel() [L407] int retValue_acc ; [L408] int tmp ; [L409] int tmp___0 ; [L413] CALL, EXPR isHighWaterSensorDry() [L212] int retValue_acc ; [L215] COND TRUE waterLevel < 2 [L216] retValue_acc = 1 [L217] return (retValue_acc); [L413] RET, EXPR isHighWaterSensorDry() [L413] tmp = isHighWaterSensorDry() [L415] COND TRUE \read(tmp) [L416] tmp___0 = 0 [L420] retValue_acc = tmp___0 [L421] return (retValue_acc); [L272] RET, EXPR isHighWaterLevel() [L272] tmp = isHighWaterLevel() [L274] COND FALSE !(\read(tmp)) [L280] FCALL processEnvironment__wrappee__base() [L311] RET processEnvironment__wrappee__methaneQuery() [L247] RET processEnvironment() [L253] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L171] int retValue_acc ; [L174] retValue_acc = methaneLevelCritical [L175] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L253] RET __utac_acc__Specification1_spec__1() [L497] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-17 08:45:58,165 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)