./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.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 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:38:57,168 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:38:57,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:38:57,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:38:57,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:38:57,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:38:57,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:38:57,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:38:57,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:38:57,305 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:38:57,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:38:57,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:38:57,307 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:38:57,309 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:38:57,310 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:38:57,310 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:38:57,310 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:38:57,310 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:38:57,311 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:38:57,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:38:57,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:38:57,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:38:57,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:38:57,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:38:57,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:38:57,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:38:57,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:38:57,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:38:57,316 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:38:57,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:38:57,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:38:57,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:38:57,317 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:38:57,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:38:57,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:38:57,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:38:57,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:38:57,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:38:57,319 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:38:57,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 471ad46a1662a2ee36763023473e29e175f1086d40bbf36d792af661871bf09e [2024-10-13 17:38:57,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:38:57,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:38:57,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:38:57,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:38:57,584 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:38:57,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2024-10-13 17:38:59,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:38:59,228 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:38:59,228 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2024-10-13 17:38:59,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa4f9715/ad9afb199034409da652c05b01ea4644/FLAG01db9c127 [2024-10-13 17:38:59,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa4f9715/ad9afb199034409da652c05b01ea4644 [2024-10-13 17:38:59,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:38:59,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:38:59,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:59,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:38:59,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:38:59,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec504ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59, skipping insertion in model container [2024-10-13 17:38:59,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:38:59,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:59,674 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:38:59,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [133] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [335] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [373] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [471] [2024-10-13 17:38:59,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [510] [2024-10-13 17:38:59,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [605] [2024-10-13 17:38:59,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:59,756 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:38:59,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59 WrapperNode [2024-10-13 17:38:59,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:59,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:59,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:38:59,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:38:59,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,805 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 63, statements flattened = 428 [2024-10-13 17:38:59,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:59,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:38:59,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:38:59,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:38:59,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,834 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]. [2024-10-13 17:38:59,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,842 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:38:59,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:38:59,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:38:59,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:38:59,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (1/1) ... [2024-10-13 17:38:59,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:38:59,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:38:59,894 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) [2024-10-13 17:38:59,896 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 [2024-10-13 17:38:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:38:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:38:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:38:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:39:00,003 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:39:00,005 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:39:00,341 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-10-13 17:39:00,341 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:39:00,356 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:39:00,356 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:39:00,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:00 BoogieIcfgContainer [2024-10-13 17:39:00,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:39:00,357 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:39:00,358 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:39:00,361 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:39:00,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:00,362 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:38:59" (1/3) ... [2024-10-13 17:39:00,363 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c50a472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:39:00, skipping insertion in model container [2024-10-13 17:39:00,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:00,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:59" (2/3) ... [2024-10-13 17:39:00,363 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c50a472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:39:00, skipping insertion in model container [2024-10-13 17:39:00,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:00,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:00" (3/3) ... [2024-10-13 17:39:00,365 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2024-10-13 17:39:00,414 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:39:00,414 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:39:00,414 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:39:00,415 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:39:00,415 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:39:00,415 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:39:00,415 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:39:00,415 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:39:00,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 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) [2024-10-13 17:39:00,443 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2024-10-13 17:39:00,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:00,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:00,449 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:00,450 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:00,450 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:39:00,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 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) [2024-10-13 17:39:00,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2024-10-13 17:39:00,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:00,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:00,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:00,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:00,468 INFO L745 eck$LassoCheckResult]: Stem: 29#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 104#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 89#valid_product_returnLabel#1true main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 105#L458true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 66#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 101#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 115#L75-2true [2024-10-13 17:39:00,469 INFO L747 eck$LassoCheckResult]: Loop: 115#L75-2true assume !false; 61#L76true assume test_~splverifierCounter~0#1 < 4; 73#L77true havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 33#L85true assume !(0 != test_~tmp~0#1); 7#L85-2true havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 87#L95true assume !(0 != test_~tmp___0~0#1); 96#L95-2true havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 22#L105true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 49#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 46#L113-2true assume { :begin_inline_timeShift } true; 95#L150true assume !(0 != ~pumpRunning~0); 86#L150-2true assume !(0 != ~systemActive~0); 21#L157-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 64#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 111#L489true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 98#L489-1true havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 55#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 115#L75-2true [2024-10-13 17:39:00,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:00,474 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-10-13 17:39:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953577105] [2024-10-13 17:39:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:00,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:00,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:00,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:00,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1923110091, now seen corresponding path program 1 times [2024-10-13 17:39:00,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392103251] [2024-10-13 17:39:00,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:00,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:00,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:00,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392103251] [2024-10-13 17:39:00,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392103251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:00,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:00,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:39:00,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375351437] [2024-10-13 17:39:00,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:00,735 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:00,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:00,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:39:00,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:39:00,775 INFO L87 Difference]: Start difference. First operand has 129 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:00,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:00,849 INFO L93 Difference]: Finished difference Result 236 states and 310 transitions. [2024-10-13 17:39:00,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 236 states and 310 transitions. [2024-10-13 17:39:00,860 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2024-10-13 17:39:00,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 236 states to 216 states and 289 transitions. [2024-10-13 17:39:00,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2024-10-13 17:39:00,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 216 [2024-10-13 17:39:00,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 216 states and 289 transitions. [2024-10-13 17:39:00,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:00,873 INFO L218 hiAutomatonCegarLoop]: Abstraction has 216 states and 289 transitions. [2024-10-13 17:39:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states and 289 transitions. [2024-10-13 17:39:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 213. [2024-10-13 17:39:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.3380281690140845) internal successors, (285), 212 states have internal predecessors, (285), 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) [2024-10-13 17:39:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 285 transitions. [2024-10-13 17:39:00,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 213 states and 285 transitions. [2024-10-13 17:39:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:39:00,916 INFO L425 stractBuchiCegarLoop]: Abstraction has 213 states and 285 transitions. [2024-10-13 17:39:00,916 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:39:00,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 285 transitions. [2024-10-13 17:39:00,919 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2024-10-13 17:39:00,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:00,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:00,920 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:00,920 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] [2024-10-13 17:39:00,921 INFO L745 eck$LassoCheckResult]: Stem: 422#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 423#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 420#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 421#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 484#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 485#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 463#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 464#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 492#L75-2 [2024-10-13 17:39:00,921 INFO L747 eck$LassoCheckResult]: Loop: 492#L75-2 assume !false; 459#L76 assume test_~splverifierCounter~0#1 < 4; 460#L77 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 428#L85 assume !(0 != test_~tmp~0#1); 380#L85-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 381#L95 assume !(0 != test_~tmp___0~0#1); 470#L95-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 408#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 409#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 440#L113-2 assume { :begin_inline_timeShift } true; 441#L150 assume !(0 != ~pumpRunning~0); 481#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 482#L182 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 488#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 547#L182-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 546#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 545#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 543#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 540#L489-1 havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 539#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 492#L75-2 [2024-10-13 17:39:00,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:00,922 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-10-13 17:39:00,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:00,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919233905] [2024-10-13 17:39:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:00,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:00,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:00,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:00,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:00,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2131541317, now seen corresponding path program 1 times [2024-10-13 17:39:00,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:00,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000158020] [2024-10-13 17:39:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:01,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:01,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000158020] [2024-10-13 17:39:01,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000158020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:01,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:01,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:39:01,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578574720] [2024-10-13 17:39:01,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:01,002 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:01,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:01,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:39:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:39:01,005 INFO L87 Difference]: Start difference. First operand 213 states and 285 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-13 17:39:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:01,093 INFO L93 Difference]: Finished difference Result 331 states and 432 transitions. [2024-10-13 17:39:01,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 432 transitions. [2024-10-13 17:39:01,096 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2024-10-13 17:39:01,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 331 states and 432 transitions. [2024-10-13 17:39:01,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 331 [2024-10-13 17:39:01,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 331 [2024-10-13 17:39:01,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 331 states and 432 transitions. [2024-10-13 17:39:01,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:01,100 INFO L218 hiAutomatonCegarLoop]: Abstraction has 331 states and 432 transitions. [2024-10-13 17:39:01,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states and 432 transitions. [2024-10-13 17:39:01,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2024-10-13 17:39:01,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 331 states have (on average 1.3051359516616314) internal successors, (432), 330 states have internal predecessors, (432), 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) [2024-10-13 17:39:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 432 transitions. [2024-10-13 17:39:01,111 INFO L240 hiAutomatonCegarLoop]: Abstraction has 331 states and 432 transitions. [2024-10-13 17:39:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:39:01,112 INFO L425 stractBuchiCegarLoop]: Abstraction has 331 states and 432 transitions. [2024-10-13 17:39:01,113 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:39:01,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states and 432 transitions. [2024-10-13 17:39:01,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2024-10-13 17:39:01,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:01,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:01,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:01,115 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] [2024-10-13 17:39:01,115 INFO L745 eck$LassoCheckResult]: Stem: 972#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 973#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 970#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 971#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1037#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1038#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1016#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1017#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1047#L75-2 [2024-10-13 17:39:01,116 INFO L747 eck$LassoCheckResult]: Loop: 1047#L75-2 assume !false; 1012#L76 assume test_~splverifierCounter~0#1 < 4; 1013#L77 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 980#L85 assume !(0 != test_~tmp~0#1); 933#L85-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1119#L95 assume !(0 != test_~tmp___0~0#1); 1117#L95-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 959#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 960#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 996#L113-2 assume { :begin_inline_timeShift } true; 997#L150 assume !(0 != ~pumpRunning~0); 1034#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1035#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1043#L595 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 953#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 954#L302 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1030#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1151#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1010#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 943#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 944#L182-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1109#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1106#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 1104#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1102#L489-1 havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1098#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1047#L75-2 [2024-10-13 17:39:01,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-10-13 17:39:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173311431] [2024-10-13 17:39:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:01,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash 850270245, now seen corresponding path program 1 times [2024-10-13 17:39:01,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579710838] [2024-10-13 17:39:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:01,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:01,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579710838] [2024-10-13 17:39:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579710838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:01,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:01,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:39:01,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873593286] [2024-10-13 17:39:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:01,238 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:01,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:01,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:39:01,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:39:01,239 INFO L87 Difference]: Start difference. First operand 331 states and 432 transitions. cyclomatic complexity: 104 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-13 17:39:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:01,298 INFO L93 Difference]: Finished difference Result 343 states and 444 transitions. [2024-10-13 17:39:01,298 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 343 states and 444 transitions. [2024-10-13 17:39:01,302 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2024-10-13 17:39:01,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 343 states to 343 states and 444 transitions. [2024-10-13 17:39:01,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 343 [2024-10-13 17:39:01,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 343 [2024-10-13 17:39:01,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 343 states and 444 transitions. [2024-10-13 17:39:01,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:01,310 INFO L218 hiAutomatonCegarLoop]: Abstraction has 343 states and 444 transitions. [2024-10-13 17:39:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states and 444 transitions. [2024-10-13 17:39:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2024-10-13 17:39:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 343 states have (on average 1.2944606413994169) internal successors, (444), 342 states have internal predecessors, (444), 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) [2024-10-13 17:39:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 444 transitions. [2024-10-13 17:39:01,327 INFO L240 hiAutomatonCegarLoop]: Abstraction has 343 states and 444 transitions. [2024-10-13 17:39:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:39:01,329 INFO L425 stractBuchiCegarLoop]: Abstraction has 343 states and 444 transitions. [2024-10-13 17:39:01,329 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:39:01,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 343 states and 444 transitions. [2024-10-13 17:39:01,331 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 247 [2024-10-13 17:39:01,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:01,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:01,332 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:01,332 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] [2024-10-13 17:39:01,332 INFO L745 eck$LassoCheckResult]: Stem: 1652#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1653#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1650#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1651#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 1726#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 1727#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1701#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1702#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1740#L75-2 [2024-10-13 17:39:01,333 INFO L747 eck$LassoCheckResult]: Loop: 1740#L75-2 assume !false; 1697#L76 assume test_~splverifierCounter~0#1 < 4; 1698#L77 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1660#L85 assume !(0 != test_~tmp~0#1); 1611#L85-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1612#L95 assume !(0 != test_~tmp___0~0#1); 1709#L95-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1639#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1640#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1675#L113-2 assume { :begin_inline_timeShift } true; 1676#L150 assume !(0 != ~pumpRunning~0); 1722#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1723#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1854#L595 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1635#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 1636#L302 assume !(0 != isHighWaterLevel_~tmp~3#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1716#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1735#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1736#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1841#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1840#L182-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1811#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1812#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 1803#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 1737#L489-1 havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1738#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1740#L75-2 [2024-10-13 17:39:01,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,333 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-10-13 17:39:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805296109] [2024-10-13 17:39:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,352 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:01,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1551334823, now seen corresponding path program 1 times [2024-10-13 17:39:01,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918814027] [2024-10-13 17:39:01,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:01,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:01,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:01,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918814027] [2024-10-13 17:39:01,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918814027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:01,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:01,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:39:01,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301162785] [2024-10-13 17:39:01,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:01,461 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:01,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:01,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:39:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:39:01,463 INFO L87 Difference]: Start difference. First operand 343 states and 444 transitions. cyclomatic complexity: 104 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-10-13 17:39:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:01,528 INFO L93 Difference]: Finished difference Result 361 states and 462 transitions. [2024-10-13 17:39:01,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 361 states and 462 transitions. [2024-10-13 17:39:01,530 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 259 [2024-10-13 17:39:01,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 361 states to 361 states and 462 transitions. [2024-10-13 17:39:01,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 361 [2024-10-13 17:39:01,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 361 [2024-10-13 17:39:01,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 361 states and 462 transitions. [2024-10-13 17:39:01,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:01,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 361 states and 462 transitions. [2024-10-13 17:39:01,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states and 462 transitions. [2024-10-13 17:39:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-10-13 17:39:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.2797783933518005) internal successors, (462), 360 states have internal predecessors, (462), 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) [2024-10-13 17:39:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 462 transitions. [2024-10-13 17:39:01,549 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 462 transitions. [2024-10-13 17:39:01,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:39:01,552 INFO L425 stractBuchiCegarLoop]: Abstraction has 361 states and 462 transitions. [2024-10-13 17:39:01,552 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 17:39:01,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 462 transitions. [2024-10-13 17:39:01,554 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 259 [2024-10-13 17:39:01,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:01,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:01,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:01,557 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] [2024-10-13 17:39:01,557 INFO L745 eck$LassoCheckResult]: Stem: 2365#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2366#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2361#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2362#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 2438#valid_product_returnLabel#1 main_#t~ret21#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret21#1;havoc main_#t~ret21#1; 2439#L458 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2412#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2413#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2449#L75-2 [2024-10-13 17:39:01,558 INFO L747 eck$LassoCheckResult]: Loop: 2449#L75-2 assume !false; 2580#L76 assume test_~splverifierCounter~0#1 < 4; 2421#L77 havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2371#L85 assume !(0 != test_~tmp~0#1); 2323#L85-2 havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2324#L95 assume !(0 != test_~tmp___0~0#1); 2422#L95-2 havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2486#L105 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2485#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2455#L113-2 assume { :begin_inline_timeShift } true; 2444#L150 assume !(0 != ~pumpRunning~0); 2435#L150-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2436#L182 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2446#L595 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2472#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret19#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret19#1;havoc isHighWaterLevel_#t~ret19#1; 2494#L302 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2492#L302-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2491#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret19#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 2489#L186 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2335#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2336#L182-1 havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 2348#L157-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2349#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret22#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret22#1;havoc __utac_acc__Specification2_spec__2_#t~ret22#1; 2411#L489 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 2588#L489-1 havoc __utac_acc__Specification2_spec__2_#t~ret22#1, __utac_acc__Specification2_spec__2_#t~ret23#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2586#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2449#L75-2 [2024-10-13 17:39:01,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-10-13 17:39:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783912064] [2024-10-13 17:39:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:01,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1437076259, now seen corresponding path program 1 times [2024-10-13 17:39:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26976610] [2024-10-13 17:39:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:01,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:01,598 INFO L85 PathProgramCache]: Analyzing trace with hash 2135321804, now seen corresponding path program 1 times [2024-10-13 17:39:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734024896] [2024-10-13 17:39:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,614 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:01,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:02,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:02,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:39:02 BoogieIcfgContainer [2024-10-13 17:39:02,670 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:39:02,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:39:02,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:39:02,672 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:39:02,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:00" (3/4) ... [2024-10-13 17:39:02,673 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:39:02,743 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:39:02,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:39:02,744 INFO L158 Benchmark]: Toolchain (without parser) took 3486.51ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 91.6MB in the beginning and 118.1MB in the end (delta: -26.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,745 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 51.1MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:39:02,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.46ms. Allocated memory is still 157.3MB. Free memory was 91.2MB in the beginning and 119.9MB in the end (delta: -28.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.71ms. Allocated memory is still 157.3MB. Free memory was 119.9MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,745 INFO L158 Benchmark]: Boogie Preprocessor took 48.08ms. Allocated memory is still 157.3MB. Free memory was 117.1MB in the beginning and 113.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,746 INFO L158 Benchmark]: RCFGBuilder took 498.91ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,746 INFO L158 Benchmark]: BuchiAutomizer took 2313.17ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 90.7MB in the beginning and 120.2MB in the end (delta: -29.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,747 INFO L158 Benchmark]: Witness Printer took 72.61ms. Allocated memory is still 188.7MB. Free memory was 120.2MB in the beginning and 118.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:02,748 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 96.5MB. Free memory was 51.1MB in the beginning and 51.1MB in the end (delta: 75.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.46ms. Allocated memory is still 157.3MB. Free memory was 91.2MB in the beginning and 119.9MB in the end (delta: -28.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.71ms. Allocated memory is still 157.3MB. Free memory was 119.9MB in the beginning and 117.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.08ms. Allocated memory is still 157.3MB. Free memory was 117.1MB in the beginning and 113.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 498.91ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 90.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 2313.17ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 90.7MB in the beginning and 120.2MB in the end (delta: -29.4MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 72.61ms. Allocated memory is still 188.7MB. Free memory was 120.2MB in the beginning and 118.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 133]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [133] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [335] - GenericResultAtLocation [Line: 373]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [373] - GenericResultAtLocation [Line: 471]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [471] - GenericResultAtLocation [Line: 510]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [510] - GenericResultAtLocation [Line: 605]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [605] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 361 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 275 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 275 mSDsluCounter, 1503 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 903 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 600 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 75]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L374] int cleanupTimeShifts = 4; [L472] int methAndRunningLastTime ; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L775] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] int retValue_acc ; [L450] int tmp ; [L454] FCALL select_helpers() [L455] FCALL select_features() [L456] CALL, EXPR valid_product() [L365] int retValue_acc ; [L368] retValue_acc = 1 [L369] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] RET, EXPR valid_product() [L456] tmp = valid_product() [L458] COND TRUE \read(tmp) [L460] FCALL setup() [L461] CALL runTest() [L442] CALL __utac_acc__Specification2_spec__1() [L477] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] RET __utac_acc__Specification2_spec__1() [L443] CALL test() [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L75] COND TRUE 1 [L77] COND TRUE splverifierCounter < 4 [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 [L107] RET startSystem() [L122] CALL timeShift() [L150] COND FALSE !(\read(pumpRunning)) [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; [L182] COND TRUE ! pumpRunning [L184] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L592] int retValue_acc ; [L595] COND TRUE waterLevel < 2 [L596] retValue_acc = 1 [L597] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND TRUE \read(tmp) [L303] tmp___0 = 0 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L184] RET, EXPR isHighWaterLevel() [L184] tmp = isHighWaterLevel() [L186] COND FALSE !(\read(tmp)) [L192] FCALL processEnvironment__wrappee__base() [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; [L487] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L487] RET, EXPR isMethaneLevelCritical() [L487] tmp = isMethaneLevelCritical() [L489] COND FALSE !(\read(tmp)) [L505] methAndRunningLastTime = 0 [L165] RET __utac_acc__Specification2_spec__2() [L122] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 75]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L374] int cleanupTimeShifts = 4; [L472] int methAndRunningLastTime ; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L775] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] int retValue_acc ; [L450] int tmp ; [L454] FCALL select_helpers() [L455] FCALL select_features() [L456] CALL, EXPR valid_product() [L365] int retValue_acc ; [L368] retValue_acc = 1 [L369] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] RET, EXPR valid_product() [L456] tmp = valid_product() [L458] COND TRUE \read(tmp) [L460] FCALL setup() [L461] CALL runTest() [L442] CALL __utac_acc__Specification2_spec__1() [L477] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] RET __utac_acc__Specification2_spec__1() [L443] CALL test() [L66] int splverifierCounter ; [L67] int tmp ; [L68] int tmp___0 ; [L69] int tmp___1 ; [L70] int tmp___2 ; [L73] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L75] COND TRUE 1 [L77] COND TRUE splverifierCounter < 4 [L83] tmp = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp)) [L93] tmp___0 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___0)) [L103] tmp___2 = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp___2) [L107] CALL startSystem() [L331] systemActive = 1 [L107] RET startSystem() [L122] CALL timeShift() [L150] COND FALSE !(\read(pumpRunning)) [L157] COND TRUE \read(systemActive) [L159] CALL processEnvironment() [L179] int tmp ; [L182] COND TRUE ! pumpRunning [L184] CALL, EXPR isHighWaterLevel() [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L300] CALL, EXPR isHighWaterSensorDry() [L592] int retValue_acc ; [L595] COND TRUE waterLevel < 2 [L596] retValue_acc = 1 [L597] return (retValue_acc); [L300] RET, EXPR isHighWaterSensorDry() [L300] tmp = isHighWaterSensorDry() [L302] COND TRUE \read(tmp) [L303] tmp___0 = 0 [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); [L184] RET, EXPR isHighWaterLevel() [L184] tmp = isHighWaterLevel() [L186] COND FALSE !(\read(tmp)) [L192] FCALL processEnvironment__wrappee__base() [L159] RET processEnvironment() [L165] CALL __utac_acc__Specification2_spec__2() [L482] int tmp ; [L483] int tmp___0 ; [L487] CALL, EXPR isMethaneLevelCritical() [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L487] RET, EXPR isMethaneLevelCritical() [L487] tmp = isMethaneLevelCritical() [L489] COND FALSE !(\read(tmp)) [L505] methAndRunningLastTime = 0 [L165] RET __utac_acc__Specification2_spec__2() [L122] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:39:02,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)