./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_spec1_product63.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_spec1_product63.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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:38:26,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:38:26,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:38:26,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:38:26,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:38:26,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:38:26,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:38:26,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:38:26,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:38:26,669 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:38:26,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:38:26,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:38:26,670 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:38:26,672 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:38:26,672 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:38:26,672 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:38:26,675 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:38:26,675 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:38:26,675 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:38:26,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:38:26,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:38:26,676 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:38:26,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:38:26,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:38:26,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:38:26,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:38:26,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:38:26,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:38:26,678 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:38:26,678 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:38:26,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:38:26,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:38:26,679 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:38:26,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:38:26,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:38:26,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:38:26,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:38:26,681 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:38:26,681 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:38:26,681 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2024-10-13 17:38:26,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:38:26,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:38:26,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:38:26,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:38:26,973 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:38:26,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2024-10-13 17:38:28,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:38:28,636 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:38:28,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2024-10-13 17:38:28,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529ac79b8/c16fa175be1741deac0a681427b4553b/FLAGd1d2e3a08 [2024-10-13 17:38:28,955 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529ac79b8/c16fa175be1741deac0a681427b4553b [2024-10-13 17:38:28,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:38:28,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:38:28,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:28,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:38:28,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:38:28,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:28" (1/1) ... [2024-10-13 17:38:28,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a406e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:28, skipping insertion in model container [2024-10-13 17:38:28,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:28" (1/1) ... [2024-10-13 17:38:29,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:38:29,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:29,334 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:38:29,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-10-13 17:38:29,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [316] [2024-10-13 17:38:29,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [386] [2024-10-13 17:38:29,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [395] [2024-10-13 17:38:29,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [761] [2024-10-13 17:38:29,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [860] [2024-10-13 17:38:29,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] [2024-10-13 17:38:29,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [990] [2024-10-13 17:38:29,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:29,431 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:38:29,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29 WrapperNode [2024-10-13 17:38:29,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:29,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:29,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:38:29,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:38:29,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,517 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 60, calls inlined = 178, statements flattened = 1210 [2024-10-13 17:38:29,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:29,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:38:29,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:38:29,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:38:29,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,538 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,565 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 17:38:29,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:38:29,617 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:38:29,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:38:29,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:38:29,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (1/1) ... [2024-10-13 17:38:29,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:38:29,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:38:29,666 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 17:38:29,668 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 17:38:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:38:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:38:29,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:38:29,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:38:29,784 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:38:29,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:38:30,488 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-10-13 17:38:30,488 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:38:30,524 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:38:30,524 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:38:30,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:30 BoogieIcfgContainer [2024-10-13 17:38:30,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:38:30,526 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:38:30,526 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:38:30,532 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:38:30,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:30,533 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:38:28" (1/3) ... [2024-10-13 17:38:30,534 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bcd551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:30, skipping insertion in model container [2024-10-13 17:38:30,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:30,534 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:29" (2/3) ... [2024-10-13 17:38:30,535 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bcd551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:30, skipping insertion in model container [2024-10-13 17:38:30,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:30,535 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:30" (3/3) ... [2024-10-13 17:38:30,536 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2024-10-13 17:38:30,588 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:38:30,588 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:38:30,588 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:38:30,588 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:38:30,588 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:38:30,588 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:38:30,588 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:38:30,589 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:38:30,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 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 17:38:30,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2024-10-13 17:38:30,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:30,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:30,640 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:30,641 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:30,641 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:38:30,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 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 17:38:30,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2024-10-13 17:38:30,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:30,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:30,667 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:30,668 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:30,673 INFO L745 eck$LassoCheckResult]: Stem: 189#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 205#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 33#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 288#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 116#valid_product_returnLabel#1true main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 289#L847true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 91#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 18#L330-2true [2024-10-13 17:38:30,674 INFO L747 eck$LassoCheckResult]: Loop: 18#L330-2true assume !false; 167#L331true assume test_~splverifierCounter~0#1 < 4; 184#L332true havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 284#L340true assume !(0 != test_~tmp~6#1); 111#L340-2true havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 133#L350true assume !(0 != test_~tmp___0~2#1); 291#L350-2true havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 23#L360true assume 0 != test_~tmp___2~0#1; 124#L366-2true assume { :begin_inline_timeShift } true; 20#L69true assume !(0 != ~pumpRunning~0); 283#L69-2true assume !(0 != ~systemActive~0); 302#L76-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 317#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 67#L869true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 150#L869-1true havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 234#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 18#L330-2true [2024-10-13 17:38:30,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-13 17:38:30,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:30,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159366584] [2024-10-13 17:38:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:30,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:30,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:30,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:30,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1022361798, now seen corresponding path program 1 times [2024-10-13 17:38:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:30,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473216415] [2024-10-13 17:38:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:30,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:30,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:30,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:30,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1917186422, now seen corresponding path program 1 times [2024-10-13 17:38:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:30,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525520752] [2024-10-13 17:38:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:31,076 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 17:38:31,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:31,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525520752] [2024-10-13 17:38:31,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525520752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:31,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:31,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:38:31,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45673995] [2024-10-13 17:38:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:31,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 17:38:31,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 17:38:31,204 INFO L87 Difference]: Start difference. First operand has 325 states, 324 states have (on average 1.3487654320987654) internal successors, (437), 324 states have internal predecessors, (437), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:38:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:31,360 INFO L93 Difference]: Finished difference Result 695 states and 917 transitions. [2024-10-13 17:38:31,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 917 transitions. [2024-10-13 17:38:31,374 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2024-10-13 17:38:31,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 665 states and 887 transitions. [2024-10-13 17:38:31,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2024-10-13 17:38:31,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2024-10-13 17:38:31,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 887 transitions. [2024-10-13 17:38:31,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:31,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 665 states and 887 transitions. [2024-10-13 17:38:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 887 transitions. [2024-10-13 17:38:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 361. [2024-10-13 17:38:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 17:38:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2024-10-13 17:38:31,441 INFO L240 hiAutomatonCegarLoop]: Abstraction has 361 states and 481 transitions. [2024-10-13 17:38:31,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 17:38:31,446 INFO L425 stractBuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2024-10-13 17:38:31,447 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:38:31,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 481 transitions. [2024-10-13 17:38:31,450 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2024-10-13 17:38:31,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:31,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:31,451 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,452 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,453 INFO L745 eck$LassoCheckResult]: Stem: 1296#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1103#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1104#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1226#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 1227#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1192#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1072#L330-2 [2024-10-13 17:38:31,453 INFO L747 eck$LassoCheckResult]: Loop: 1072#L330-2 assume !false; 1073#L331 assume test_~splverifierCounter~0#1 < 4; 1277#L332 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 1290#L340 assume !(0 != test_~tmp~6#1); 1219#L340-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1220#L350 assume !(0 != test_~tmp___0~2#1); 1106#L350-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1083#L360 assume 0 != test_~tmp___2~0#1; 1085#L366-2 assume { :begin_inline_timeShift } true; 1076#L69 assume !(0 != ~pumpRunning~0); 1077#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1069#L153 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1071#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1; 1342#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1; 1059#L157 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1061#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1190#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1216#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1343#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 1161#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 1140#L869-1 havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1266#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1072#L330-2 [2024-10-13 17:38:31,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-13 17:38:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718374366] [2024-10-13 17:38:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:31,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1369353105, now seen corresponding path program 1 times [2024-10-13 17:38:31,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379495830] [2024-10-13 17:38:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:31,523 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 17:38:31,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:31,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379495830] [2024-10-13 17:38:31,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379495830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:31,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:31,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:38:31,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963097379] [2024-10-13 17:38:31,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:31,525 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:38:31,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:38:31,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:38:31,526 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:38:31,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:31,631 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2024-10-13 17:38:31,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 457 transitions. [2024-10-13 17:38:31,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2024-10-13 17:38:31,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 457 transitions. [2024-10-13 17:38:31,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2024-10-13 17:38:31,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2024-10-13 17:38:31,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 457 transitions. [2024-10-13 17:38:31,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:31,639 INFO L218 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2024-10-13 17:38:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 457 transitions. [2024-10-13 17:38:31,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-10-13 17:38:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 17:38:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2024-10-13 17:38:31,655 INFO L240 hiAutomatonCegarLoop]: Abstraction has 363 states and 457 transitions. [2024-10-13 17:38:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:38:31,658 INFO L425 stractBuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2024-10-13 17:38:31,658 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:38:31,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 457 transitions. [2024-10-13 17:38:31,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2024-10-13 17:38:31,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:31,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:31,663 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,663 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,663 INFO L745 eck$LassoCheckResult]: Stem: 1978#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1979#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1815#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1816#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1911#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 1912#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1885#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1886#L330-2 [2024-10-13 17:38:31,664 INFO L747 eck$LassoCheckResult]: Loop: 1886#L330-2 assume !false; 1957#L331 assume test_~splverifierCounter~0#1 < 4; 1958#L332 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2114#L340 assume !(0 != test_~tmp~6#1); 2112#L340-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1925#L350 assume !(0 != test_~tmp___0~2#1); 1814#L350-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1798#L360 assume 0 != test_~tmp___2~0#1; 1800#L366-2 assume { :begin_inline_timeShift } true; 1917#L69 assume !(0 != ~pumpRunning~0); 2025#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1788#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 1789#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1999#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1834#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1835#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 2019#L272-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1992#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1987#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 1988#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1927#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1771#L101-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1772#L127-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1884#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1904#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 2031#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 1860#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 1845#L869-1 havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1944#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1886#L330-2 [2024-10-13 17:38:31,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-10-13 17:38:31,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717379771] [2024-10-13 17:38:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,676 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:31,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1645274565, now seen corresponding path program 1 times [2024-10-13 17:38:31,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804999310] [2024-10-13 17:38:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:31,731 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 17:38:31,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:31,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804999310] [2024-10-13 17:38:31,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804999310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:31,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:31,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:38:31,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816613166] [2024-10-13 17:38:31,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:31,733 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:38:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:31,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:38:31,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:38:31,734 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 17:38:31,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:31,858 INFO L93 Difference]: Finished difference Result 381 states and 475 transitions. [2024-10-13 17:38:31,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 475 transitions. [2024-10-13 17:38:31,860 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2024-10-13 17:38:31,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 381 states and 475 transitions. [2024-10-13 17:38:31,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 381 [2024-10-13 17:38:31,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 381 [2024-10-13 17:38:31,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 381 states and 475 transitions. [2024-10-13 17:38:31,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:31,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 381 states and 475 transitions. [2024-10-13 17:38:31,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states and 475 transitions. [2024-10-13 17:38:31,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-10-13 17:38:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 17:38:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2024-10-13 17:38:31,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 381 states and 475 transitions. [2024-10-13 17:38:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:38:31,903 INFO L425 stractBuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2024-10-13 17:38:31,903 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:38:31,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 475 transitions. [2024-10-13 17:38:31,905 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2024-10-13 17:38:31,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:31,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:31,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,908 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:31,909 INFO L745 eck$LassoCheckResult]: Stem: 2741#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2566#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2567#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2670#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 2671#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2643#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2644#L330-2 [2024-10-13 17:38:31,909 INFO L747 eck$LassoCheckResult]: Loop: 2644#L330-2 assume !false; 2884#L331 assume test_~splverifierCounter~0#1 < 4; 2736#L332 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2737#L340 assume !(0 != test_~tmp~6#1); 2665#L340-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2666#L350 assume !(0 != test_~tmp___0~2#1); 2569#L350-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2550#L360 assume 0 != test_~tmp___2~0#1; 2552#L366-2 assume { :begin_inline_timeShift } true; 2543#L69 assume !(0 != ~pumpRunning~0); 2544#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2539#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2540#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2767#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 2582#L971-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 2583#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 2792#L272-9 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1; 2759#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2754#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 2755#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2685#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2519#L101-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2520#L127-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2642#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 2663#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 2803#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 2616#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 2600#L869-1 havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2769#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2644#L330-2 [2024-10-13 17:38:31,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-10-13 17:38:31,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258138972] [2024-10-13 17:38:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:31,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:31,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:31,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1058468551, now seen corresponding path program 1 times [2024-10-13 17:38:31,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:31,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907202361] [2024-10-13 17:38:31,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:31,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:32,019 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 17:38:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:32,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907202361] [2024-10-13 17:38:32,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907202361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:32,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:32,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:38:32,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794584467] [2024-10-13 17:38:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:32,021 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:38:32,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:38:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:38:32,021 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 17:38:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:32,188 INFO L93 Difference]: Finished difference Result 408 states and 502 transitions. [2024-10-13 17:38:32,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 408 states and 502 transitions. [2024-10-13 17:38:32,191 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2024-10-13 17:38:32,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 408 states to 408 states and 502 transitions. [2024-10-13 17:38:32,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 408 [2024-10-13 17:38:32,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 408 [2024-10-13 17:38:32,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 408 states and 502 transitions. [2024-10-13 17:38:32,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:32,193 INFO L218 hiAutomatonCegarLoop]: Abstraction has 408 states and 502 transitions. [2024-10-13 17:38:32,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states and 502 transitions. [2024-10-13 17:38:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2024-10-13 17:38:32,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 17:38:32,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2024-10-13 17:38:32,200 INFO L240 hiAutomatonCegarLoop]: Abstraction has 408 states and 502 transitions. [2024-10-13 17:38:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:38:32,201 INFO L425 stractBuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2024-10-13 17:38:32,201 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 17:38:32,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 502 transitions. [2024-10-13 17:38:32,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2024-10-13 17:38:32,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:32,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:32,204 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:32,204 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:32,204 INFO L745 eck$LassoCheckResult]: Stem: 3536#$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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3537#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3363#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3364#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 3461#valid_product_returnLabel#1 main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1; 3462#L847 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3434#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3435#L330-2 [2024-10-13 17:38:32,204 INFO L747 eck$LassoCheckResult]: Loop: 3435#L330-2 assume !false; 3709#L331 assume test_~splverifierCounter~0#1 < 4; 3531#L332 havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 3532#L340 assume !(0 != test_~tmp~6#1); 3455#L340-2 havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 3456#L350 assume !(0 != test_~tmp___0~2#1); 3717#L350-2 havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 3346#L360 assume 0 != test_~tmp___2~0#1; 3348#L366-2 assume { :begin_inline_timeShift } true; 3468#L69 assume !(0 != ~pumpRunning~0); 3587#L69-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3336#L153 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 3337#L127-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3559#L101-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 3382#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 3384#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1; 3691#L272-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3690#L272-11 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3689#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1; 3643#L105-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3478#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3319#L101-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3320#L127-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3433#L153-1 havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 3453#L76-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 3593#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1; 3409#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1); 3394#L869-1 havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true; 3710#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3435#L330-2 [2024-10-13 17:38:32,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:32,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-10-13 17:38:32,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108487898] [2024-10-13 17:38:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:32,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:32,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:32,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1369829053, now seen corresponding path program 1 times [2024-10-13 17:38:32,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:32,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147507326] [2024-10-13 17:38:32,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:32,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:32,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1495563777, now seen corresponding path program 1 times [2024-10-13 17:38:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765440107] [2024-10-13 17:38:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:32,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:33,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:33,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:38:33 BoogieIcfgContainer [2024-10-13 17:38:33,108 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:38:33,109 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:38:33,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:38:33,109 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:38:33,109 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:30" (3/4) ... [2024-10-13 17:38:33,110 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:38:33,170 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:38:33,170 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:38:33,171 INFO L158 Benchmark]: Toolchain (without parser) took 4212.62ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 61.8MB in the end (delta: 78.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,171 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:38:33,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.78ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 117.4MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.36ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 112.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,172 INFO L158 Benchmark]: Boogie Preprocessor took 97.51ms. Allocated memory is still 174.1MB. Free memory was 112.4MB in the beginning and 106.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,172 INFO L158 Benchmark]: RCFGBuilder took 908.11ms. Allocated memory is still 174.1MB. Free memory was 106.9MB in the beginning and 60.0MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,172 INFO L158 Benchmark]: BuchiAutomizer took 2582.39ms. Allocated memory is still 174.1MB. Free memory was 60.0MB in the beginning and 65.0MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:38:33,173 INFO L158 Benchmark]: Witness Printer took 61.45ms. Allocated memory is still 174.1MB. Free memory was 65.0MB in the beginning and 61.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:38:33,174 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.78ms. Allocated memory is still 174.1MB. Free memory was 140.3MB in the beginning and 117.4MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.36ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 112.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.51ms. Allocated memory is still 174.1MB. Free memory was 112.4MB in the beginning and 106.9MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 908.11ms. Allocated memory is still 174.1MB. Free memory was 106.9MB in the beginning and 60.0MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 2582.39ms. Allocated memory is still 174.1MB. Free memory was 60.0MB in the beginning and 65.0MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.45ms. Allocated memory is still 174.1MB. Free memory was 65.0MB in the beginning and 61.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 316]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [316] - GenericResultAtLocation [Line: 386]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [386] - GenericResultAtLocation [Line: 395]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [395] - GenericResultAtLocation [Line: 761]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [761] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [860] - GenericResultAtLocation [Line: 886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] - GenericResultAtLocation [Line: 990]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [990] * 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 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 304 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, 1447 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1447 mSDsluCounter, 4163 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2818 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 1345 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 330]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L829] CALL test() [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L330] COND TRUE 1 [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L375] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L867] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L375] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 330]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L829] CALL test() [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L330] COND TRUE 1 [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L375] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L867] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L375] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:38:33,203 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)