./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f 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_spec5_product34.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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:41:20,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:41:20,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:41:20,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:41:20,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:41:20,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:41:20,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:41:20,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:41:20,925 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:41:20,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:41:20,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:41:20,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:41:20,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:41:20,930 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:41:20,930 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:41:20,931 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:41:20,931 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:41:20,932 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:41:20,935 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:41:20,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:41:20,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:41:20,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:41:20,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:41:20,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:41:20,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:41:20,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:41:20,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:41:20,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:41:20,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:41:20,939 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:41:20,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:41:20,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:41:20,940 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:41:20,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:41:20,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:41:20,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:41:20,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:41:20,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:41:20,943 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:41:20,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2024-11-12 21:41:21,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:41:21,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:41:21,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:41:21,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:41:21,243 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:41:21,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-11-12 21:41:22,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:41:22,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:41:23,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-11-12 21:41:23,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b109616a/c1f91409809b48928985821fa791c85a/FLAG32310485a [2024-11-12 21:41:23,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b109616a/c1f91409809b48928985821fa791c85a [2024-11-12 21:41:23,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:41:23,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:41:23,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:41:23,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:41:23,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:41:23,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9b7dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23, skipping insertion in model container [2024-11-12 21:41:23,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:41:23,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:41:23,686 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:41:23,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-12 21:41:23,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2024-11-12 21:41:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2024-11-12 21:41:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2024-11-12 21:41:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2024-11-12 21:41:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2024-11-12 21:41:23,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2024-11-12 21:41:23,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2024-11-12 21:41:23,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:41:23,793 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:41:23,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23 WrapperNode [2024-11-12 21:41:23,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:41:23,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:41:23,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:41:23,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:41:23,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,847 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 58, statements flattened = 382 [2024-11-12 21:41:23,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:41:23,848 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:41:23,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:41:23,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:41:23,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,872 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]. [2024-11-12 21:41:23,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:41:23,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:41:23,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:41:23,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:41:23,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (1/1) ... [2024-11-12 21:41:23,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:41:23,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:23,933 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) [2024-11-12 21:41:23,936 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 [2024-11-12 21:41:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:41:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:41:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:41:23,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:41:24,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:41:24,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:41:24,416 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-11-12 21:41:24,416 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:41:24,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:41:24,435 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 21:41:24,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:24 BoogieIcfgContainer [2024-11-12 21:41:24,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:41:24,454 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:41:24,454 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:41:24,459 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:41:24,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:24,463 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:41:23" (1/3) ... [2024-11-12 21:41:24,464 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@748da424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:41:24, skipping insertion in model container [2024-11-12 21:41:24,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:24,464 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:23" (2/3) ... [2024-11-12 21:41:24,465 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@748da424 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:41:24, skipping insertion in model container [2024-11-12 21:41:24,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:24,466 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:24" (3/3) ... [2024-11-12 21:41:24,468 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2024-11-12 21:41:24,527 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:41:24,528 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:41:24,528 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:41:24,528 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:41:24,528 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:41:24,528 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:41:24,528 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:41:24,528 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:41:24,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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) [2024-11-12 21:41:24,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2024-11-12 21:41:24,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:24,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:24,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:24,561 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] [2024-11-12 21:41:24,561 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:41:24,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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) [2024-11-12 21:41:24,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2024-11-12 21:41:24,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:24,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:24,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:24,569 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] [2024-11-12 21:41:24,574 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:24,574 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet36#1;test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:24,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:24,579 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-12 21:41:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:24,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759812687] [2024-11-12 21:41:24,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:24,696 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:24,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:24,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:24,745 INFO L85 PathProgramCache]: Analyzing trace with hash -529130674, now seen corresponding path program 1 times [2024-11-12 21:41:24,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:24,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935557498] [2024-11-12 21:41:24,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:24,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:24,757 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:24,767 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:24,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash 900617669, now seen corresponding path program 1 times [2024-11-12 21:41:24,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:24,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114726216] [2024-11-12 21:41:24,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:24,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:25,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:25,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114726216] [2024-11-12 21:41:25,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114726216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:25,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288921590] [2024-11-12 21:41:25,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:25,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:25,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:25,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:41:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:25,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:41:25,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:25,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:25,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288921590] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:25,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:25,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-12 21:41:25,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592677804] [2024-11-12 21:41:25,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:25,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:25,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 21:41:25,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 21:41:25,464 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 118 states have internal predecessors, (161), 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 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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) [2024-11-12 21:41:25,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:25,538 INFO L93 Difference]: Finished difference Result 113 states and 144 transitions. [2024-11-12 21:41:25,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 144 transitions. [2024-11-12 21:41:25,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2024-11-12 21:41:25,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 103 states and 134 transitions. [2024-11-12 21:41:25,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2024-11-12 21:41:25,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 103 [2024-11-12 21:41:25,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 134 transitions. [2024-11-12 21:41:25,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:25,550 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2024-11-12 21:41:25,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 134 transitions. [2024-11-12 21:41:25,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-12 21:41:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 103 states have (on average 1.3009708737864079) internal successors, (134), 102 states have internal predecessors, (134), 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) [2024-11-12 21:41:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 134 transitions. [2024-11-12 21:41:25,582 INFO L240 hiAutomatonCegarLoop]: Abstraction has 103 states and 134 transitions. [2024-11-12 21:41:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:41:25,589 INFO L426 stractBuchiCegarLoop]: Abstraction has 103 states and 134 transitions. [2024-11-12 21:41:25,589 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:41:25,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 103 states and 134 transitions. [2024-11-12 21:41:25,591 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2024-11-12 21:41:25,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:25,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:25,592 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:25,592 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:25,592 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:25,593 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet36#1;test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:25,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:25,594 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-12 21:41:25,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:25,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987389299] [2024-11-12 21:41:25,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:25,604 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:25,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:25,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:25,614 INFO L85 PathProgramCache]: Analyzing trace with hash 342897585, now seen corresponding path program 1 times [2024-11-12 21:41:25,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:25,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191499395] [2024-11-12 21:41:25,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:25,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:25,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191499395] [2024-11-12 21:41:25,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191499395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:25,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066977289] [2024-11-12 21:41:25,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:25,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:25,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:25,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 21:41:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:25,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:41:25,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:25,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:25,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066977289] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:25,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:25,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:41:25,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033641394] [2024-11-12 21:41:25,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:25,740 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:25,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:41:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:41:25,741 INFO L87 Difference]: Start difference. First operand 103 states and 134 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:41:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:25,806 INFO L93 Difference]: Finished difference Result 165 states and 209 transitions. [2024-11-12 21:41:25,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 209 transitions. [2024-11-12 21:41:25,809 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-12 21:41:25,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 209 transitions. [2024-11-12 21:41:25,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2024-11-12 21:41:25,812 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2024-11-12 21:41:25,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 209 transitions. [2024-11-12 21:41:25,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:25,814 INFO L218 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2024-11-12 21:41:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 209 transitions. [2024-11-12 21:41:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-12 21:41:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 164 states have internal predecessors, (209), 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) [2024-11-12 21:41:25,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 209 transitions. [2024-11-12 21:41:25,832 INFO L240 hiAutomatonCegarLoop]: Abstraction has 165 states and 209 transitions. [2024-11-12 21:41:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:41:25,836 INFO L426 stractBuchiCegarLoop]: Abstraction has 165 states and 209 transitions. [2024-11-12 21:41:25,837 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:41:25,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 209 transitions. [2024-11-12 21:41:25,838 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2024-11-12 21:41:25,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:25,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:25,839 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:25,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:25,840 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:25,841 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:25,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:25,842 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-12 21:41:25,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:25,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68927111] [2024-11-12 21:41:25,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:25,857 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:25,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:25,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:25,870 INFO L85 PathProgramCache]: Analyzing trace with hash -622464868, now seen corresponding path program 1 times [2024-11-12 21:41:25,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:25,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047485996] [2024-11-12 21:41:25,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:25,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:25,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047485996] [2024-11-12 21:41:25,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047485996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:25,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732342320] [2024-11-12 21:41:25,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:25,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:25,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:25,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:25,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 21:41:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:26,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 21:41:26,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:26,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:26,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732342320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:26,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-12 21:41:26,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870625114] [2024-11-12 21:41:26,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:26,058 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:26,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:26,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 21:41:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 21:41:26,059 INFO L87 Difference]: Start difference. First operand 165 states and 209 transitions. cyclomatic complexity: 46 Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-12 21:41:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:26,126 INFO L93 Difference]: Finished difference Result 171 states and 215 transitions. [2024-11-12 21:41:26,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 215 transitions. [2024-11-12 21:41:26,128 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-12 21:41:26,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 215 transitions. [2024-11-12 21:41:26,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2024-11-12 21:41:26,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2024-11-12 21:41:26,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 215 transitions. [2024-11-12 21:41:26,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:26,133 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-11-12 21:41:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 215 transitions. [2024-11-12 21:41:26,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-12 21:41:26,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 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) [2024-11-12 21:41:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2024-11-12 21:41:26,146 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-11-12 21:41:26,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 21:41:26,147 INFO L426 stractBuchiCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-11-12 21:41:26,148 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:41:26,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 215 transitions. [2024-11-12 21:41:26,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-12 21:41:26,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:26,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:26,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:26,150 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:26,150 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:26,151 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:26,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-12 21:41:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161867707] [2024-11-12 21:41:26,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,166 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:26,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1209270882, now seen corresponding path program 1 times [2024-11-12 21:41:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268597516] [2024-11-12 21:41:26,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:26,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268597516] [2024-11-12 21:41:26,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268597516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375853686] [2024-11-12 21:41:26,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:26,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:26,242 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:26,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 21:41:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:26,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 21:41:26,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:26,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:26,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375853686] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:26,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:26,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-12 21:41:26,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688012709] [2024-11-12 21:41:26,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:26,347 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:26,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 21:41:26,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 21:41:26,348 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:41:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:26,417 INFO L93 Difference]: Finished difference Result 180 states and 224 transitions. [2024-11-12 21:41:26,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 224 transitions. [2024-11-12 21:41:26,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2024-11-12 21:41:26,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 180 states and 224 transitions. [2024-11-12 21:41:26,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 180 [2024-11-12 21:41:26,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 180 [2024-11-12 21:41:26,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 224 transitions. [2024-11-12 21:41:26,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:26,427 INFO L218 hiAutomatonCegarLoop]: Abstraction has 180 states and 224 transitions. [2024-11-12 21:41:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 224 transitions. [2024-11-12 21:41:26,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-12 21:41:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 180 states have (on average 1.2444444444444445) internal successors, (224), 179 states have internal predecessors, (224), 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) [2024-11-12 21:41:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 224 transitions. [2024-11-12 21:41:26,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 180 states and 224 transitions. [2024-11-12 21:41:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:41:26,442 INFO L426 stractBuchiCegarLoop]: Abstraction has 180 states and 224 transitions. [2024-11-12 21:41:26,444 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 21:41:26,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 224 transitions. [2024-11-12 21:41:26,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2024-11-12 21:41:26,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:26,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:26,446 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:26,446 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:26,446 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:26,446 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:26,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-11-12 21:41:26,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127030416] [2024-11-12 21:41:26,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,458 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:26,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1323529446, now seen corresponding path program 1 times [2024-11-12 21:41:26,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967143833] [2024-11-12 21:41:26,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:26,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:26,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967143833] [2024-11-12 21:41:26,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967143833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:26,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436816899] [2024-11-12 21:41:26,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:26,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:26,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:26,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 21:41:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:26,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 21:41:26,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:26,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:26,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436816899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:26,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:26,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-12 21:41:26,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219766653] [2024-11-12 21:41:26,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:26,648 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:26,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:26,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 21:41:26,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 21:41:26,649 INFO L87 Difference]: Start difference. First operand 180 states and 224 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:41:26,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:26,738 INFO L93 Difference]: Finished difference Result 329 states and 403 transitions. [2024-11-12 21:41:26,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 403 transitions. [2024-11-12 21:41:26,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2024-11-12 21:41:26,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 329 states and 403 transitions. [2024-11-12 21:41:26,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2024-11-12 21:41:26,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2024-11-12 21:41:26,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 403 transitions. [2024-11-12 21:41:26,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:26,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 329 states and 403 transitions. [2024-11-12 21:41:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 403 transitions. [2024-11-12 21:41:26,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-12 21:41:26,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 329 states have (on average 1.2249240121580547) internal successors, (403), 328 states have internal predecessors, (403), 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) [2024-11-12 21:41:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 403 transitions. [2024-11-12 21:41:26,763 INFO L240 hiAutomatonCegarLoop]: Abstraction has 329 states and 403 transitions. [2024-11-12 21:41:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:41:26,768 INFO L426 stractBuchiCegarLoop]: Abstraction has 329 states and 403 transitions. [2024-11-12 21:41:26,768 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 21:41:26,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states and 403 transitions. [2024-11-12 21:41:26,785 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 236 [2024-11-12 21:41:26,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:26,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:26,786 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:26,786 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] [2024-11-12 21:41:26,786 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:26,787 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:26,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,787 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2024-11-12 21:41:26,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763793300] [2024-11-12 21:41:26,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,796 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:26,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,805 INFO L85 PathProgramCache]: Analyzing trace with hash -622482987, now seen corresponding path program 1 times [2024-11-12 21:41:26,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985957517] [2024-11-12 21:41:26,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,819 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,825 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:26,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1706626814, now seen corresponding path program 1 times [2024-11-12 21:41:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556680587] [2024-11-12 21:41:26,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:26,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,841 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:26,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:27,672 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:27,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:41:27 BoogieIcfgContainer [2024-11-12 21:41:27,734 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:41:27,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:41:27,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:41:27,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:41:27,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:24" (3/4) ... [2024-11-12 21:41:27,738 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:41:27,804 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:41:27,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:41:27,808 INFO L158 Benchmark]: Toolchain (without parser) took 4459.91ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 109.6MB in the beginning and 82.1MB in the end (delta: 27.6MB). Peak memory consumption was 130.3MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,808 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.20ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 88.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.32ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: Boogie Preprocessor took 41.27ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 82.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: RCFGBuilder took 546.53ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 122.9MB in the end (delta: -40.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: BuchiAutomizer took 3280.12ms. Allocated memory is still 255.9MB. Free memory was 225.6MB in the beginning and 85.2MB in the end (delta: 140.4MB). Peak memory consumption was 140.4MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,809 INFO L158 Benchmark]: Witness Printer took 72.28ms. Allocated memory is still 255.9MB. Free memory was 85.2MB in the beginning and 82.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:41:27,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.20ms. Allocated memory is still 155.2MB. Free memory was 109.2MB in the beginning and 88.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.32ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.27ms. Allocated memory is still 155.2MB. Free memory was 85.7MB in the beginning and 82.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.53ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 122.9MB in the end (delta: -40.1MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3280.12ms. Allocated memory is still 255.9MB. Free memory was 225.6MB in the beginning and 85.2MB in the end (delta: 140.4MB). Peak memory consumption was 140.4MB. Max. memory is 16.1GB. * Witness Printer took 72.28ms. Allocated memory is still 255.9MB. Free memory was 85.2MB in the beginning and 82.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 329 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 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, 480 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 2121 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1429 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 692 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:41:27,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:28,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 21:41:28,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 21:41:28,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:28,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:28,840 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)