./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_spec3_product48.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 baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:39:58,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:39:58,546 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:39:58,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:39:58,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:39:58,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:39:58,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:39:58,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:39:58,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:39:58,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:39:58,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:39:58,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:39:58,579 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:39:58,580 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:39:58,581 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:39:58,581 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:39:58,582 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:39:58,582 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:39:58,582 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:39:58,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:39:58,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:39:58,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:39:58,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:39:58,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:39:58,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:39:58,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:39:58,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:39:58,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:39:58,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:39:58,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:39:58,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:39:58,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:39:58,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:39:58,589 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:39:58,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2024-11-12 21:39:58,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:39:58,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:39:58,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:39:58,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:39:58,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:39:58,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-12 21:40:00,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:40:00,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:40:00,354 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2024-11-12 21:40:00,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0198fd0f7/0114659377c646cea6b961709f29d303/FLAG12242e467 [2024-11-12 21:40:00,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0198fd0f7/0114659377c646cea6b961709f29d303 [2024-11-12 21:40:00,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:40:00,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:40:00,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:40:00,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:40:00,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:40:00,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eef1104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00, skipping insertion in model container [2024-11-12 21:40:00,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:40:00,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:40:00,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:40:00,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-12 21:40:00,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-12 21:40:00,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] [2024-11-12 21:40:00,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] [2024-11-12 21:40:00,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] [2024-11-12 21:40:00,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] [2024-11-12 21:40:00,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] [2024-11-12 21:40:00,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2024-11-12 21:40:00,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:40:00,856 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:40:00,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00 WrapperNode [2024-11-12 21:40:00,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:40:00,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:40:00,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:40:00,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:40:00,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,914 INFO L138 Inliner]: procedures = 56, calls = 104, calls flagged for inlining = 57, calls inlined = 104, statements flattened = 700 [2024-11-12 21:40:00,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:40:00,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:40:00,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:40:00,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:40:00,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,942 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 21:40:00,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:40:00,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:40:00,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:40:00,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:40:00,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (1/1) ... [2024-11-12 21:40:00,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:40:00,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:40:01,013 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 21:40:01,016 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 21:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:40:01,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:40:01,133 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:40:01,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:40:01,525 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2024-11-12 21:40:01,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:40:01,540 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:40:01,541 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 21:40:01,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:40:01 BoogieIcfgContainer [2024-11-12 21:40:01,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:40:01,542 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:40:01,542 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:40:01,544 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:40:01,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:40:01,545 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:40:00" (1/3) ... [2024-11-12 21:40:01,546 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:40:01, skipping insertion in model container [2024-11-12 21:40:01,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:40:01,546 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:40:00" (2/3) ... [2024-11-12 21:40:01,546 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b5136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:40:01, skipping insertion in model container [2024-11-12 21:40:01,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:40:01,546 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:40:01" (3/3) ... [2024-11-12 21:40:01,547 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2024-11-12 21:40:01,590 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:40:01,591 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:40:01,591 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:40:01,591 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:40:01,591 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:40:01,591 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:40:01,591 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:40:01,591 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:40:01,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 21:40:01,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2024-11-12 21:40:01,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:40:01,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:40:01,621 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:01,621 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:01,622 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:40:01,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 21:40:01,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2024-11-12 21:40:01,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:40:01,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:40:01,630 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:01,634 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:01,638 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#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~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:40:01,638 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___1~1#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:40:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-12 21:40:01,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:01,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703769241] [2024-11-12 21:40:01,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:01,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:01,735 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:01,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:01,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash -399552415, now seen corresponding path program 1 times [2024-11-12 21:40:01,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:01,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310659220] [2024-11-12 21:40:01,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:01,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:01,779 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:01,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:01,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:01,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1331234019, now seen corresponding path program 1 times [2024-11-12 21:40:01,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:01,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253441247] [2024-11-12 21:40:01,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:01,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:40:02,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253441247] [2024-11-12 21:40:02,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253441247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:40:02,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712809535] [2024-11-12 21:40:02,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:40:02,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:40:02,062 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 21:40:02,063 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 21:40:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:40:02,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:40:02,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:40:02,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712809535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:40:02,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:40:02,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-12 21:40:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046457000] [2024-11-12 21:40:02,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:40:02,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:40:02,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 21:40:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 21:40:02,358 INFO L87 Difference]: Start difference. First operand has 194 states, 193 states have (on average 1.3523316062176165) internal successors, (261), 193 states have internal predecessors, (261), 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 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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 21:40:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:40:02,493 INFO L93 Difference]: Finished difference Result 438 states and 573 transitions. [2024-11-12 21:40:02,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 438 states and 573 transitions. [2024-11-12 21:40:02,505 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 287 [2024-11-12 21:40:02,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 438 states to 408 states and 543 transitions. [2024-11-12 21:40:02,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 408 [2024-11-12 21:40:02,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 408 [2024-11-12 21:40:02,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 408 states and 543 transitions. [2024-11-12 21:40:02,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:40:02,522 INFO L218 hiAutomatonCegarLoop]: Abstraction has 408 states and 543 transitions. [2024-11-12 21:40:02,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states and 543 transitions. [2024-11-12 21:40:02,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 236. [2024-11-12 21:40:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 236 states have (on average 1.3305084745762712) internal successors, (314), 235 states have internal predecessors, (314), 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 21:40:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2024-11-12 21:40:02,557 INFO L240 hiAutomatonCegarLoop]: Abstraction has 236 states and 314 transitions. [2024-11-12 21:40:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 21:40:02,561 INFO L426 stractBuchiCegarLoop]: Abstraction has 236 states and 314 transitions. [2024-11-12 21:40:02,561 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:40:02,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 236 states and 314 transitions. [2024-11-12 21:40:02,562 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 165 [2024-11-12 21:40:02,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:40:02,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:40:02,563 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:02,563 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 21:40:02,563 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#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~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:40:02,563 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~1#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___1~1#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:40:02,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-12 21:40:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479637262] [2024-11-12 21:40:02,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,578 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:02,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:02,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1432818525, now seen corresponding path program 1 times [2024-11-12 21:40:02,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:02,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401700855] [2024-11-12 21:40:02,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:40:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401700855] [2024-11-12 21:40:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401700855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:40:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053338842] [2024-11-12 21:40:02,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:40:02,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:40:02,623 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 21:40:02,625 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 21:40:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:40:02,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:40:02,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:40:02,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053338842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:40:02,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:40:02,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:40:02,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605587475] [2024-11-12 21:40:02,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:40:02,697 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:40:02,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:40:02,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:40:02,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:40:02,698 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. cyclomatic complexity: 81 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 21:40:02,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:40:02,769 INFO L93 Difference]: Finished difference Result 299 states and 381 transitions. [2024-11-12 21:40:02,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 299 states and 381 transitions. [2024-11-12 21:40:02,770 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2024-11-12 21:40:02,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 299 states to 299 states and 381 transitions. [2024-11-12 21:40:02,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2024-11-12 21:40:02,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2024-11-12 21:40:02,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 381 transitions. [2024-11-12 21:40:02,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:40:02,777 INFO L218 hiAutomatonCegarLoop]: Abstraction has 299 states and 381 transitions. [2024-11-12 21:40:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 381 transitions. [2024-11-12 21:40:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-12 21:40:02,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 299 states have (on average 1.274247491638796) internal successors, (381), 298 states have internal predecessors, (381), 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 21:40:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 381 transitions. [2024-11-12 21:40:02,785 INFO L240 hiAutomatonCegarLoop]: Abstraction has 299 states and 381 transitions. [2024-11-12 21:40:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:40:02,786 INFO L426 stractBuchiCegarLoop]: Abstraction has 299 states and 381 transitions. [2024-11-12 21:40:02,786 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:40:02,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 299 states and 381 transitions. [2024-11-12 21:40:02,787 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2024-11-12 21:40:02,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:40:02,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:40:02,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:02,788 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 21:40:02,788 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#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~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:40:02,789 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:40:02,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:02,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-12 21:40:02,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:02,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040083074] [2024-11-12 21:40:02,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,796 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:02,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:02,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1117706665, now seen corresponding path program 1 times [2024-11-12 21:40:02,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:02,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947859949] [2024-11-12 21:40:02,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,807 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:02,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:02,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash -133275283, now seen corresponding path program 1 times [2024-11-12 21:40:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663062116] [2024-11-12 21:40:02,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:40:02,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663062116] [2024-11-12 21:40:02,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663062116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:40:02,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961030137] [2024-11-12 21:40:02,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:02,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:40:02,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:40:02,896 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 21:40:02,897 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 21:40:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:40:02,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 21:40:02,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:40:02,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:40:03,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961030137] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:40:03,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:40:03,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-12 21:40:03,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859758281] [2024-11-12 21:40:03,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:40:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:40:03,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 21:40:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 21:40:03,201 INFO L87 Difference]: Start difference. First operand 299 states and 381 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:40:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:40:03,301 INFO L93 Difference]: Finished difference Result 591 states and 743 transitions. [2024-11-12 21:40:03,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 591 states and 743 transitions. [2024-11-12 21:40:03,304 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 426 [2024-11-12 21:40:03,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 591 states to 591 states and 743 transitions. [2024-11-12 21:40:03,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 591 [2024-11-12 21:40:03,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 591 [2024-11-12 21:40:03,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 591 states and 743 transitions. [2024-11-12 21:40:03,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:40:03,311 INFO L218 hiAutomatonCegarLoop]: Abstraction has 591 states and 743 transitions. [2024-11-12 21:40:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states and 743 transitions. [2024-11-12 21:40:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-11-12 21:40:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 591 states have (on average 1.257191201353638) internal successors, (743), 590 states have internal predecessors, (743), 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 21:40:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 743 transitions. [2024-11-12 21:40:03,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 591 states and 743 transitions. [2024-11-12 21:40:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:40:03,336 INFO L426 stractBuchiCegarLoop]: Abstraction has 591 states and 743 transitions. [2024-11-12 21:40:03,337 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:40:03,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 591 states and 743 transitions. [2024-11-12 21:40:03,339 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 426 [2024-11-12 21:40:03,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:40:03,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:40:03,340 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:40:03,340 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 21:40:03,340 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#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~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:40:03,340 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~6#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet28#1;test_~tmp___0~2#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1;" "isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1;" "processEnvironment__wrappee__methaneQuery_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~1#1 := processEnvironment__wrappee__methaneQuery_#t~ret13#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1;" "assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret13#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1;" "__utac_acc__Specification3_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1;" "__utac_acc__Specification3_spec__1_#t~ret6#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:40:03,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-12 21:40:03,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:03,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248066040] [2024-11-12 21:40:03,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:03,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,351 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:03,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash 375475998, now seen corresponding path program 1 times [2024-11-12 21:40:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:03,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798827265] [2024-11-12 21:40:03,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,365 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:03,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:40:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 772666850, now seen corresponding path program 1 times [2024-11-12 21:40:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:40:03,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508529170] [2024-11-12 21:40:03,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:40:03,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:40:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,391 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:03,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:40:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:04,050 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:40:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:40:04,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:40:04 BoogieIcfgContainer [2024-11-12 21:40:04,098 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:40:04,099 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:40:04,099 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:40:04,099 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:40:04,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:40:01" (3/4) ... [2024-11-12 21:40:04,101 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:40:04,155 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:40:04,155 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:40:04,156 INFO L158 Benchmark]: Toolchain (without parser) took 3736.49ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 101.0MB in the beginning and 86.2MB in the end (delta: 14.8MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.37ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 100.8MB in the beginning and 138.6MB in the end (delta: -37.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.48ms. Allocated memory is still 184.5MB. Free memory was 138.6MB in the beginning and 134.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: Boogie Preprocessor took 59.70ms. Allocated memory is still 184.5MB. Free memory was 134.4MB in the beginning and 130.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: RCFGBuilder took 563.57ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 98.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,156 INFO L158 Benchmark]: BuchiAutomizer took 2556.37ms. Allocated memory is still 184.5MB. Free memory was 98.7MB in the beginning and 89.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,157 INFO L158 Benchmark]: Witness Printer took 56.51ms. Allocated memory is still 184.5MB. Free memory was 89.3MB in the beginning and 86.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:40:04,160 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.37ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 100.8MB in the beginning and 138.6MB in the end (delta: -37.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.48ms. Allocated memory is still 184.5MB. Free memory was 138.6MB in the beginning and 134.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.70ms. Allocated memory is still 184.5MB. Free memory was 134.4MB in the beginning and 130.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 563.57ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 98.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2556.37ms. Allocated memory is still 184.5MB. Free memory was 98.7MB in the beginning and 89.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 56.51ms. Allocated memory is still 184.5MB. Free memory was 89.3MB in the beginning and 86.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [96] - GenericResultAtLocation [Line: 133]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [133] - GenericResultAtLocation [Line: 232]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [232] - GenericResultAtLocation [Line: 456]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [456] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [553] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 591 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 172 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1058 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1058 mSDsluCounter, 2503 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1748 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 755 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 564]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp)) [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___2) [L596] CALL startSystem() [L452] systemActive = 1 [L596] RET startSystem() [L611] CALL timeShift() [L246] COND FALSE !(\read(pumpRunning)) [L253] COND TRUE \read(systemActive) [L255] CALL processEnvironment() [L301] int tmp ; [L304] COND FALSE !(\read(pumpRunning)) [L319] CALL processEnvironment__wrappee__methaneQuery() [L275] int tmp ; [L278] COND TRUE ! pumpRunning [L280] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L219] int retValue_acc ; [L222] COND TRUE waterLevel < 2 [L223] retValue_acc = 1 [L224] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND TRUE \read(tmp) [L424] tmp___0 = 0 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L280] RET, EXPR isHighWaterLevel() [L280] tmp = isHighWaterLevel() [L282] COND FALSE !(\read(tmp)) [L288] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment__wrappee__methaneQuery() [L255] RET processEnvironment() [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L261] RET __utac_acc__Specification3_spec__1() [L611] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 564]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; [L536] FCALL select_helpers() [L537] FCALL select_features() [L538] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] RET, EXPR valid_product() [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L542] FCALL setup() [L543] CALL runTest() [L525] CALL test() [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L564] COND TRUE 1 [L566] COND TRUE splverifierCounter < 4 [L572] tmp = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp)) [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___2) [L596] CALL startSystem() [L452] systemActive = 1 [L596] RET startSystem() [L611] CALL timeShift() [L246] COND FALSE !(\read(pumpRunning)) [L253] COND TRUE \read(systemActive) [L255] CALL processEnvironment() [L301] int tmp ; [L304] COND FALSE !(\read(pumpRunning)) [L319] CALL processEnvironment__wrappee__methaneQuery() [L275] int tmp ; [L278] COND TRUE ! pumpRunning [L280] CALL, EXPR isHighWaterLevel() [L415] int retValue_acc ; [L416] int tmp ; [L417] int tmp___0 ; [L421] CALL, EXPR isHighWaterSensorDry() [L219] int retValue_acc ; [L222] COND TRUE waterLevel < 2 [L223] retValue_acc = 1 [L224] return (retValue_acc); [L421] RET, EXPR isHighWaterSensorDry() [L421] tmp = isHighWaterSensorDry() [L423] COND TRUE \read(tmp) [L424] tmp___0 = 0 [L428] retValue_acc = tmp___0 [L429] return (retValue_acc); [L280] RET, EXPR isHighWaterLevel() [L280] tmp = isHighWaterLevel() [L282] COND FALSE !(\read(tmp)) [L288] FCALL processEnvironment__wrappee__base() [L319] RET processEnvironment__wrappee__methaneQuery() [L255] RET processEnvironment() [L261] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L107] CALL, EXPR isMethaneLevelCritical() [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); [L107] RET, EXPR isMethaneLevelCritical() [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND FALSE !(tmp___0 == 2) [L261] RET __utac_acc__Specification3_spec__1() [L611] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:40:04,186 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 21:40:04,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 21:40:04,583 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 21:40:04,783 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)