./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f 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_spec2_product62.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 d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:14:19,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:14:19,758 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:14:19,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:14:19,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:14:19,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:14:19,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:14:19,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:14:19,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:14:19,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:14:19,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:14:19,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:14:19,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:14:19,800 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:14:19,802 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:14:19,802 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:14:19,803 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:14:19,803 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:14:19,803 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:14:19,804 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:14:19,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:14:19,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:14:19,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:14:19,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:14:19,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:14:19,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:14:19,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:14:19,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:14:19,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:14:19,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:14:19,807 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:14:19,807 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:14:19,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:14:19,807 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:14:19,808 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:14:19,808 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:14:19,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:14:19,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:14:19,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:14:19,809 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:14:19,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 [2024-11-10 23:14:20,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:14:20,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:14:20,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:14:20,079 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:14:20,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:14:20,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2024-11-10 23:14:21,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:14:21,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:14:21,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2024-11-10 23:14:21,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03afe263/2dc7b53969b14d2fb727256ff2450faa/FLAG415717b90 [2024-11-10 23:14:21,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f03afe263/2dc7b53969b14d2fb727256ff2450faa [2024-11-10 23:14:21,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:14:21,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:14:21,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:21,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:14:21,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:14:21,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:21" (1/1) ... [2024-11-10 23:14:21,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aea14fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:21, skipping insertion in model container [2024-11-10 23:14:21,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:14:21" (1/1) ... [2024-11-10 23:14:21,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:14:22,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:22,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:14:22,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-10 23:14:22,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2024-11-10 23:14:22,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [521] [2024-11-10 23:14:22,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [530] [2024-11-10 23:14:22,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [571] [2024-11-10 23:14:22,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [679] [2024-11-10 23:14:22,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] [2024-11-10 23:14:22,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] [2024-11-10 23:14:22,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:14:22,350 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:14:22,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22 WrapperNode [2024-11-10 23:14:22,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:14:22,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:22,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:14:22,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:14:22,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,421 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 60, calls inlined = 178, statements flattened = 1220 [2024-11-10 23:14:22,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:14:22,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:14:22,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:14:22,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:14:22,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,468 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]. [2024-11-10 23:14:22,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:14:22,501 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:14:22,502 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:14:22,502 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:14:22,502 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (1/1) ... [2024-11-10 23:14:22,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:14:22,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:14:22,541 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) [2024-11-10 23:14:22,548 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 [2024-11-10 23:14:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:14:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:14:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:14:22,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:14:22,711 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:14:22,713 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:14:23,337 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-1: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,338 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-3: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,338 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-5: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,338 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-7: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-9: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-11: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-13: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-15: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-17: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-19: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-21: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L667-23: isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-1: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,339 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-3: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-5: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-7: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-9: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-11: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-13: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-15: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-17: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-19: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-21: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002-23: isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-1: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-3: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-5: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-7: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-9: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,340 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-11: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-13: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-15: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-17: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-19: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-21: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-23: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-25: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,341 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-27: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L938-29: isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; [2024-11-10 23:14:23,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-1: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-3: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-5: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-7: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-9: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L676-11: isLowWaterSensorDry_#res#1 := isLowWaterSensorDry_~retValue_acc~7#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: valid_product_#res#1 := valid_product_~retValue_acc~9#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L947-1: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L947-3: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L947-5: isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L518-1: main_#res#1 := main_~retValue_acc~3#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-1: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-3: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-5: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-7: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-9: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-11: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-13: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-15: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-17: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-19: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,345 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-21: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-23: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-25: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-27: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-29: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-31: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-33: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L621-35: isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-1: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,346 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-3: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,347 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-5: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,348 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-7: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,348 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-9: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,348 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1021-11: isLowWaterLevel_#res#1 := isLowWaterLevel_~retValue_acc~13#1; [2024-11-10 23:14:23,382 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-11-10 23:14:23,383 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:14:23,405 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:14:23,405 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:14:23,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:23 BoogieIcfgContainer [2024-11-10 23:14:23,406 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:14:23,407 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:14:23,407 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:14:23,410 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:14:23,411 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:23,412 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:14:21" (1/3) ... [2024-11-10 23:14:23,412 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4221f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:23, skipping insertion in model container [2024-11-10 23:14:23,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:23,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:14:22" (2/3) ... [2024-11-10 23:14:23,414 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4221f4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:14:23, skipping insertion in model container [2024-11-10 23:14:23,414 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:14:23,414 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:23" (3/3) ... [2024-11-10 23:14:23,416 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2024-11-10 23:14:23,480 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:14:23,480 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:14:23,480 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:14:23,480 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:14:23,480 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:14:23,480 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:14:23,481 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:14:23,481 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:14:23,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 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) [2024-11-10 23:14:23,515 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-10 23:14:23,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:23,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:23,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:23,522 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:23,522 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:14:23,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 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) [2024-11-10 23:14:23,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-10 23:14:23,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:23,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:23,533 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:23,534 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:23,538 INFO L745 eck$LassoCheckResult]: Stem: 299#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 21#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 184#L702true assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 141#L695true assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 68#L710true assume true;main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 27#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 223#L479true assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 52#L539true assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 254#L726true [2024-11-10 23:14:23,539 INFO L747 eck$LassoCheckResult]: Loop: 254#L726true assume true; 242#L726-1true assume !false;assume true; 65#L728true assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 195#L736true assume !(0 != test_~tmp~5#1); 36#L744true havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 89#L746true assume !(0 != test_~tmp___0~1#1); 153#L754true havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 78#L756true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 314#L1029true assume true;assume { :end_inline_startSystem } true; 268#L771true assume { :begin_inline_timeShift } true; 25#L792-2true assume !(0 != ~pumpRunning~0); 192#L799-2true assume !(0 != ~systemActive~0); 231#L807-2true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 130#L620-12true assume true;__utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 171#L550-2true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 29#L568-2true assume true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 98#L809-2true assume true;assume { :end_inline_timeShift } true; 254#L726true [2024-11-10 23:14:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:23,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1510090470, now seen corresponding path program 1 times [2024-11-10 23:14:23,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073156157] [2024-11-10 23:14:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:23,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:23,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:23,680 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:23,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:23,682 INFO L85 PathProgramCache]: Analyzing trace with hash 657713718, now seen corresponding path program 1 times [2024-11-10 23:14:23,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:23,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568474974] [2024-11-10 23:14:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:23,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:23,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:23,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568474974] [2024-11-10 23:14:23,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568474974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:23,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:23,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:14:23,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318463494] [2024-11-10 23:14:23,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:23,772 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:23,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:23,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:14:23,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:14:23,800 INFO L87 Difference]: Start difference. First operand has 326 states, 325 states have (on average 1.353846153846154) internal successors, (440), 325 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-10 23:14:23,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:23,840 INFO L93 Difference]: Finished difference Result 320 states and 424 transitions. [2024-11-10 23:14:23,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 424 transitions. [2024-11-10 23:14:23,873 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2024-11-10 23:14:23,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 309 states and 412 transitions. [2024-11-10 23:14:23,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2024-11-10 23:14:23,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2024-11-10 23:14:23,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 412 transitions. [2024-11-10 23:14:23,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:23,893 INFO L218 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-10 23:14:23,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 412 transitions. [2024-11-10 23:14:23,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2024-11-10 23:14:23,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 308 states have internal predecessors, (412), 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) [2024-11-10 23:14:23,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2024-11-10 23:14:23,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-10 23:14:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 23:14:23,958 INFO L425 stractBuchiCegarLoop]: Abstraction has 309 states and 412 transitions. [2024-11-10 23:14:23,958 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-10 23:14:23,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 412 transitions. [2024-11-10 23:14:23,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 206 [2024-11-10 23:14:23,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:23,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:23,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:23,961 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] [2024-11-10 23:14:23,962 INFO L745 eck$LassoCheckResult]: Stem: 958#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 691#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 692#L702 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 859#L695 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 770#L710 assume true;main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 703#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 704#L479 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 744#L539 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 745#L726 [2024-11-10 23:14:23,962 INFO L747 eck$LassoCheckResult]: Loop: 745#L726 assume true; 939#L726-1 assume !false;assume true; 765#L728 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 767#L736 assume !(0 != test_~tmp~5#1); 717#L744 havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 718#L746 assume !(0 != test_~tmp___0~1#1); 658#L754 havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 787#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 788#L1029 assume true;assume { :end_inline_startSystem } true; 950#L771 assume { :begin_inline_timeShift } true; 700#L792-2 assume !(0 != ~pumpRunning~0); 702#L799-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 896#L876-2 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 754#L620-15 assume true;isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 755#L937-12 assume true;processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; 851#L880-2 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 917#L927-6 assume true;assume { :end_inline_deactivatePump } true; 835#L894-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 929#L807-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 847#L620-12 assume true;__utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 848#L550-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 667#L568-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 708#L809-2 assume true;assume { :end_inline_timeShift } true; 745#L726 [2024-11-10 23:14:23,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1510090470, now seen corresponding path program 2 times [2024-11-10 23:14:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:23,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210325580] [2024-11-10 23:14:23,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:23,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:23,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:23,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:23,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:23,988 INFO L85 PathProgramCache]: Analyzing trace with hash 411120638, now seen corresponding path program 1 times [2024-11-10 23:14:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:23,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180595778] [2024-11-10 23:14:23,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:23,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:24,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:24,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:24,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180595778] [2024-11-10 23:14:24,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180595778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:24,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:24,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:14:24,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494817669] [2024-11-10 23:14:24,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:24,029 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:24,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:24,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:14:24,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:14:24,031 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:14:24,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:24,134 INFO L93 Difference]: Finished difference Result 319 states and 405 transitions. [2024-11-10 23:14:24,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 405 transitions. [2024-11-10 23:14:24,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2024-11-10 23:14:24,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 405 transitions. [2024-11-10 23:14:24,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2024-11-10 23:14:24,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2024-11-10 23:14:24,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 405 transitions. [2024-11-10 23:14:24,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:24,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 319 states and 405 transitions. [2024-11-10 23:14:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 405 transitions. [2024-11-10 23:14:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2024-11-10 23:14:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 318 states have internal predecessors, (405), 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) [2024-11-10 23:14:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 405 transitions. [2024-11-10 23:14:24,165 INFO L240 hiAutomatonCegarLoop]: Abstraction has 319 states and 405 transitions. [2024-11-10 23:14:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 23:14:24,171 INFO L425 stractBuchiCegarLoop]: Abstraction has 319 states and 405 transitions. [2024-11-10 23:14:24,171 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-10 23:14:24,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 319 states and 405 transitions. [2024-11-10 23:14:24,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 218 [2024-11-10 23:14:24,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:24,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:24,175 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,175 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] [2024-11-10 23:14:24,175 INFO L745 eck$LassoCheckResult]: Stem: 1536#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1316#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1317#L702 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1449#L695 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1382#L710 assume true;main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1327#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1328#L479 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1358#L539 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1359#L726 [2024-11-10 23:14:24,176 INFO L747 eck$LassoCheckResult]: Loop: 1359#L726 assume true; 1513#L726-1 assume !false;assume true; 1377#L728 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1379#L736 assume !(0 != test_~tmp~5#1); 1338#L744 havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1339#L746 assume !(0 != test_~tmp___0~1#1); 1290#L754 havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1397#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1398#L1029 assume true;assume { :end_inline_startSystem } true; 1527#L771 assume { :begin_inline_timeShift } true; 1325#L792-2 assume !(0 != ~pumpRunning~0); 1326#L799-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1479#L876-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 1373#L850-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1374#L824-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1406#L660-11 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1518#L665-11 assume true;isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1351#L995-11 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1352#L1000-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1424#L1001-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1425#L828-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1457#L816-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 1361#L842-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1362#L868-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1430#L894-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 1506#L807-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1437#L620-12 assume true;__utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 1438#L550-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 1299#L568-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1331#L809-2 assume true;assume { :end_inline_timeShift } true; 1359#L726 [2024-11-10 23:14:24,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1510090470, now seen corresponding path program 3 times [2024-11-10 23:14:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022306984] [2024-11-10 23:14:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:24,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1757305448, now seen corresponding path program 1 times [2024-11-10 23:14:24,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789436933] [2024-11-10 23:14:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:24,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789436933] [2024-11-10 23:14:24,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789436933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:24,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 23:14:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633002956] [2024-11-10 23:14:24,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:24,261 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:24,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 23:14:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 23:14:24,262 INFO L87 Difference]: Start difference. First operand 319 states and 405 transitions. cyclomatic complexity: 88 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) [2024-11-10 23:14:24,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:24,373 INFO L93 Difference]: Finished difference Result 337 states and 423 transitions. [2024-11-10 23:14:24,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 423 transitions. [2024-11-10 23:14:24,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 230 [2024-11-10 23:14:24,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 337 states and 423 transitions. [2024-11-10 23:14:24,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 337 [2024-11-10 23:14:24,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 337 [2024-11-10 23:14:24,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 337 states and 423 transitions. [2024-11-10 23:14:24,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:24,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 337 states and 423 transitions. [2024-11-10 23:14:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states and 423 transitions. [2024-11-10 23:14:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-10 23:14:24,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 337 states have (on average 1.2551928783382789) internal successors, (423), 336 states have internal predecessors, (423), 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) [2024-11-10 23:14:24,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 423 transitions. [2024-11-10 23:14:24,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 337 states and 423 transitions. [2024-11-10 23:14:24,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 23:14:24,392 INFO L425 stractBuchiCegarLoop]: Abstraction has 337 states and 423 transitions. [2024-11-10 23:14:24,393 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-10 23:14:24,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 337 states and 423 transitions. [2024-11-10 23:14:24,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 230 [2024-11-10 23:14:24,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:24,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:24,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,398 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] [2024-11-10 23:14:24,398 INFO L745 eck$LassoCheckResult]: Stem: 2215#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1979#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1980#L702 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2118#L695 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2045#L710 assume true;main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1990#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1991#L479 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2021#L539 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2022#L726 [2024-11-10 23:14:24,398 INFO L747 eck$LassoCheckResult]: Loop: 2022#L726 assume true; 2188#L726-1 assume !false;assume true; 2040#L728 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2042#L736 assume !(0 != test_~tmp~5#1); 2001#L744 havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2002#L746 assume !(0 != test_~tmp___0~1#1); 1953#L754 havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2060#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2061#L1029 assume true;assume { :end_inline_startSystem } true; 2205#L771 assume { :begin_inline_timeShift } true; 1986#L792-2 assume !(0 != ~pumpRunning~0); 1987#L799-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 2153#L876-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 2036#L850-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2037#L824-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2071#L660-11 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~6#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2193#L665-11 assume true;isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2012#L995-11 assume !(0 != isHighWaterLevel_~tmp~10#1);isHighWaterLevel_~tmp___0~2#1 := 1; 2013#L1000-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2089#L1001-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 2090#L828-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2128#L816-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2024#L842-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2025#L868-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2095#L894-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 2180#L807-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2104#L620-12 assume true;__utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 2105#L550-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 1962#L568-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1994#L809-2 assume true;assume { :end_inline_timeShift } true; 2022#L726 [2024-11-10 23:14:24,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1510090470, now seen corresponding path program 4 times [2024-11-10 23:14:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784593005] [2024-11-10 23:14:24,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:24,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1463902441, now seen corresponding path program 1 times [2024-11-10 23:14:24,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651060715] [2024-11-10 23:14:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:14:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:14:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:14:24,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651060715] [2024-11-10 23:14:24,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651060715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:14:24,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:14:24,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 23:14:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480069455] [2024-11-10 23:14:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:14:24,491 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:14:24,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:14:24,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 23:14:24,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 23:14:24,491 INFO L87 Difference]: Start difference. First operand 337 states and 423 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 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) [2024-11-10 23:14:24,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 23:14:24,629 INFO L93 Difference]: Finished difference Result 364 states and 450 transitions. [2024-11-10 23:14:24,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 364 states and 450 transitions. [2024-11-10 23:14:24,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 248 [2024-11-10 23:14:24,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 364 states to 364 states and 450 transitions. [2024-11-10 23:14:24,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 364 [2024-11-10 23:14:24,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 364 [2024-11-10 23:14:24,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 364 states and 450 transitions. [2024-11-10 23:14:24,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-10 23:14:24,633 INFO L218 hiAutomatonCegarLoop]: Abstraction has 364 states and 450 transitions. [2024-11-10 23:14:24,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states and 450 transitions. [2024-11-10 23:14:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-10 23:14:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 364 states have (on average 1.2362637362637363) internal successors, (450), 363 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 23:14:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 450 transitions. [2024-11-10 23:14:24,645 INFO L240 hiAutomatonCegarLoop]: Abstraction has 364 states and 450 transitions. [2024-11-10 23:14:24,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 23:14:24,650 INFO L425 stractBuchiCegarLoop]: Abstraction has 364 states and 450 transitions. [2024-11-10 23:14:24,650 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-10 23:14:24,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 364 states and 450 transitions. [2024-11-10 23:14:24,651 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 248 [2024-11-10 23:14:24,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:14:24,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:14:24,654 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:14:24,654 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] [2024-11-10 23:14:24,654 INFO L745 eck$LassoCheckResult]: Stem: 2920#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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2688#ULTIMATE.init_returnLabel#1 assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2689#L702 assume true;assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2823#L695 assume true;assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2753#L710 assume true;main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2699#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2700#L479 assume true;assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2729#L539 assume true;assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2730#L726 [2024-11-10 23:14:24,654 INFO L747 eck$LassoCheckResult]: Loop: 2730#L726 assume true; 2894#L726-1 assume !false;assume true; 2748#L728 assume test_~splverifierCounter~0#1 < 4;havoc test_#t~nondet36#1;test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2750#L736 assume !(0 != test_~tmp~5#1); 2710#L744 havoc test_#t~nondet37#1;test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2711#L746 assume !(0 != test_~tmp___0~1#1); 2662#L754 havoc test_#t~nondet38#1;test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2766#L756 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet39#1;test_~tmp___1~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2768#L764 assume 0 != test_~tmp___1~0#1; 2912#L771 assume { :begin_inline_timeShift } true; 2695#L792-2 assume !(0 != ~pumpRunning~0); 2696#L799-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 2901#L876-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 2744#L850-5 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2745#L824-11 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2777#L660-11 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2899#L665-11 assume true;isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 3023#L995-11 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3022#L1000-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3021#L1001-11 assume true;processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 3020#L828-11 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2834#L816-22 assume true;assume { :end_inline_processEnvironment__wrappee__base } true; 2733#L842-11 assume true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2734#L868-5 assume true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2803#L894-2 assume true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;assume { :end_inline_processEnvironment } true; 2886#L807-2 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2810#L620-12 assume true;__utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 2811#L550-2 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 2673#L568-2 assume true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2703#L809-2 assume true;assume { :end_inline_timeShift } true; 2730#L726 [2024-11-10 23:14:24,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1510090470, now seen corresponding path program 5 times [2024-11-10 23:14:24,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529932664] [2024-11-10 23:14:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:24,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash 657293702, now seen corresponding path program 1 times [2024-11-10 23:14:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120106245] [2024-11-10 23:14:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:24,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:14:24,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1357195487, now seen corresponding path program 1 times [2024-11-10 23:14:24,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:14:24,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921331200] [2024-11-10 23:14:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:14:24,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:14:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:24,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 23:14:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 23:14:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 23:14:25,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:14:25 BoogieIcfgContainer [2024-11-10 23:14:25,487 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-10 23:14:25,488 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 23:14:25,488 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 23:14:25,488 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 23:14:25,488 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:14:23" (3/4) ... [2024-11-10 23:14:25,490 INFO L140 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-10 23:14:25,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 23:14:25,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 23:14:25,545 INFO L158 Benchmark]: Toolchain (without parser) took 3641.15ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 90.1MB in the beginning and 59.1MB in the end (delta: 30.9MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,546 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:14:25,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.11ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 130.4MB in the end (delta: -40.3MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.44ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 125.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,546 INFO L158 Benchmark]: Boogie Preprocessor took 75.82ms. Allocated memory is still 167.8MB. Free memory was 125.2MB in the beginning and 119.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,546 INFO L158 Benchmark]: IcfgBuilder took 904.60ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 79.2MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,547 INFO L158 Benchmark]: BuchiAutomizer took 2080.61ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 79.2MB in the beginning and 62.3MB in the end (delta: 16.9MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,547 INFO L158 Benchmark]: Witness Printer took 57.24ms. Allocated memory is still 203.4MB. Free memory was 62.3MB in the beginning and 59.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:14:25,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.11ms. Allocated memory is still 167.8MB. Free memory was 90.1MB in the beginning and 130.4MB in the end (delta: -40.3MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.44ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 125.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.82ms. Allocated memory is still 167.8MB. Free memory was 125.2MB in the beginning and 119.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 904.60ms. Allocated memory is still 167.8MB. Free memory was 119.9MB in the beginning and 79.2MB in the end (delta: 40.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 2080.61ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 79.2MB in the beginning and 62.3MB in the end (delta: 16.9MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Witness Printer took 57.24ms. Allocated memory is still 203.4MB. Free memory was 62.3MB in the beginning and 59.1MB in the end (delta: 3.2MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [521] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [530] - GenericResultAtLocation [Line: 571]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [571] - GenericResultAtLocation [Line: 679]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [679] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] - GenericResultAtLocation [Line: 782]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 364 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 648 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 648 mSDsluCounter, 2819 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1487 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 1332 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 726]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int methAndRunningLastTime ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L706] int retValue_acc ; [L709] retValue_acc = 1 [L710] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification2_spec__1() [L538] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification2_spec__1() [L490] CALL test() [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND FALSE !(\read(tmp___2)) [L762] tmp___1 = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp___1) [L771] CALL timeShift() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L801] CALL processEnvironment() [L873] int tmp ; [L876] COND FALSE !(\read(pumpRunning)) [L891] CALL processEnvironment__wrappee__methaneQuery() [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L865] CALL processEnvironment__wrappee__highWaterSensor() [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L826] CALL, EXPR isHighWaterLevel() [L987] int retValue_acc ; [L988] int tmp ; [L989] int tmp___0 ; [L993] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L993] RET, EXPR isHighWaterSensorDry() [L993] tmp = isHighWaterSensorDry() [L995] COND TRUE \read(tmp) [L996] tmp___0 = 0 [L1000] retValue_acc = tmp___0 [L1001] return (retValue_acc); [L826] RET, EXPR isHighWaterLevel() [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L834] FCALL processEnvironment__wrappee__base() [L865] RET processEnvironment__wrappee__highWaterSensor() [L891] RET processEnvironment__wrappee__methaneQuery() [L801] RET processEnvironment() [L807] CALL __utac_acc__Specification2_spec__2() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR isMethaneLevelCritical() [L616] int retValue_acc ; [L619] retValue_acc = methaneLevelCritical [L620] return (retValue_acc); [L548] RET, EXPR isMethaneLevelCritical() [L548] tmp = isMethaneLevelCritical() [L550] COND FALSE !(\read(tmp)) [L566] methAndRunningLastTime = 0 [L807] RET __utac_acc__Specification2_spec__2() [L771] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 726]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int methAndRunningLastTime ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L706] int retValue_acc ; [L709] retValue_acc = 1 [L710] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification2_spec__1() [L538] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification2_spec__1() [L490] CALL test() [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND FALSE !(\read(tmp___2)) [L762] tmp___1 = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp___1) [L771] CALL timeShift() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L801] CALL processEnvironment() [L873] int tmp ; [L876] COND FALSE !(\read(pumpRunning)) [L891] CALL processEnvironment__wrappee__methaneQuery() [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L865] CALL processEnvironment__wrappee__highWaterSensor() [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L826] CALL, EXPR isHighWaterLevel() [L987] int retValue_acc ; [L988] int tmp ; [L989] int tmp___0 ; [L993] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L993] RET, EXPR isHighWaterSensorDry() [L993] tmp = isHighWaterSensorDry() [L995] COND TRUE \read(tmp) [L996] tmp___0 = 0 [L1000] retValue_acc = tmp___0 [L1001] return (retValue_acc); [L826] RET, EXPR isHighWaterLevel() [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L834] FCALL processEnvironment__wrappee__base() [L865] RET processEnvironment__wrappee__highWaterSensor() [L891] RET processEnvironment__wrappee__methaneQuery() [L801] RET processEnvironment() [L807] CALL __utac_acc__Specification2_spec__2() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR isMethaneLevelCritical() [L616] int retValue_acc ; [L619] retValue_acc = methaneLevelCritical [L620] return (retValue_acc); [L548] RET, EXPR isMethaneLevelCritical() [L548] tmp = isMethaneLevelCritical() [L550] COND FALSE !(\read(tmp)) [L566] methAndRunningLastTime = 0 [L807] RET __utac_acc__Specification2_spec__2() [L771] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-10 23:14:25,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)