./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product37.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 aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:38:53,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:38:53,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:38:53,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:38:53,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:38:53,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:38:53,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:38:53,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:38:53,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:38:53,258 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:38:53,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:38:53,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:38:53,260 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:38:53,261 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:38:53,261 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:38:53,261 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:38:53,261 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:38:53,262 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:38:53,262 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:38:53,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:38:53,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:38:53,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:38:53,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:38:53,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:38:53,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:38:53,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:38:53,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:38:53,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:38:53,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:38:53,269 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:38:53,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:38:53,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:38:53,271 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:38:53,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:38:53,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:38:53,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:38:53,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:38:53,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:38:53,273 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:38:53,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2024-10-13 17:38:53,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:38:53,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:38:53,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:38:53,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:38:53,585 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:38:53,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2024-10-13 17:38:55,065 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:38:55,315 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:38:55,315 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2024-10-13 17:38:55,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217e7c045/75e66e5b92744d848593c9fd473f4bb3/FLAG51203a761 [2024-10-13 17:38:55,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217e7c045/75e66e5b92744d848593c9fd473f4bb3 [2024-10-13 17:38:55,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:38:55,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:38:55,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:55,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:38:55,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:38:55,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a0446e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55, skipping insertion in model container [2024-10-13 17:38:55,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:38:55,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:55,673 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:38:55,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [237] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [305] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [345] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [440] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] [2024-10-13 17:38:55,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [915] [2024-10-13 17:38:55,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:38:55,775 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:38:55,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55 WrapperNode [2024-10-13 17:38:55,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:38:55,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:55,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:38:55,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:38:55,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,849 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 52, calls inlined = 81, statements flattened = 547 [2024-10-13 17:38:55,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:38:55,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:38:55,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:38:55,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:38:55,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,889 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 17:38:55,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:38:55,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:38:55,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:38:55,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:38:55,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (1/1) ... [2024-10-13 17:38:55,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:38:55,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:38:55,956 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 17:38:55,959 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 17:38:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:38:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:38:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:38:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:38:56,115 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:38:56,117 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:38:56,557 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-10-13 17:38:56,557 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:38:56,579 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:38:56,579 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:38:56,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:56 BoogieIcfgContainer [2024-10-13 17:38:56,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:38:56,580 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:38:56,581 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:38:56,589 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:38:56,590 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:56,590 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:38:55" (1/3) ... [2024-10-13 17:38:56,591 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61d39b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:56, skipping insertion in model container [2024-10-13 17:38:56,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:56,591 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:38:55" (2/3) ... [2024-10-13 17:38:56,591 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61d39b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:38:56, skipping insertion in model container [2024-10-13 17:38:56,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:38:56,592 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:56" (3/3) ... [2024-10-13 17:38:56,593 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2024-10-13 17:38:56,649 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:38:56,650 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:38:56,650 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:38:56,650 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:38:56,650 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:38:56,650 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:38:56,650 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:38:56,651 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:38:56,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 17:38:56,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2024-10-13 17:38:56,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:56,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:56,690 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:56,690 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 17:38:56,690 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:38:56,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 17:38:56,699 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2024-10-13 17:38:56,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:56,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:56,701 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:56,702 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 17:38:56,707 INFO L745 eck$LassoCheckResult]: Stem: 32#$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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 30#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 133#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 110#valid_product_returnLabel#1true main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 121#L902true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 86#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 132#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 61#L251-2true [2024-10-13 17:38:56,708 INFO L747 eck$LassoCheckResult]: Loop: 61#L251-2true assume !false; 62#L252true assume test_~splverifierCounter~0#1 < 4; 104#L253true havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 163#L261true assume !(0 != test_~tmp~3#1); 58#L261-2true havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 34#L271true assume !(0 != test_~tmp___0~1#1); 98#L271-2true havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 18#L281true assume 0 != test_~tmp___2~0#1; 118#L287-2true assume { :begin_inline_timeShift } true; 151#L67true assume !(0 != ~pumpRunning~0); 19#L67-2true assume !(0 != ~systemActive~0); 123#L74-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 84#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret20#1;havoc __utac_acc__Specification2_spec__2_#t~ret20#1; 20#L324true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 112#L324-1true havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 74#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 61#L251-2true [2024-10-13 17:38:56,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:56,714 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-10-13 17:38:56,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:56,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487563797] [2024-10-13 17:38:56,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:56,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:56,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:56,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash -652053684, now seen corresponding path program 1 times [2024-10-13 17:38:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:56,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845656264] [2024-10-13 17:38:56,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:56,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:56,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:56,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:56,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:56,903 INFO L85 PathProgramCache]: Analyzing trace with hash -814341067, now seen corresponding path program 1 times [2024-10-13 17:38:56,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:56,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128729042] [2024-10-13 17:38:56,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:56,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:57,151 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 17:38:57,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128729042] [2024-10-13 17:38:57,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128729042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:57,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:57,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:38:57,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283925536] [2024-10-13 17:38:57,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:57,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 17:38:57,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 17:38:57,301 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 17:38:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:57,390 INFO L93 Difference]: Finished difference Result 157 states and 206 transitions. [2024-10-13 17:38:57,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 206 transitions. [2024-10-13 17:38:57,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2024-10-13 17:38:57,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 147 states and 196 transitions. [2024-10-13 17:38:57,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2024-10-13 17:38:57,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 147 [2024-10-13 17:38:57,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 147 states and 196 transitions. [2024-10-13 17:38:57,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:57,411 INFO L218 hiAutomatonCegarLoop]: Abstraction has 147 states and 196 transitions. [2024-10-13 17:38:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states and 196 transitions. [2024-10-13 17:38:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-10-13 17:38:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.3333333333333333) internal successors, (196), 146 states have internal predecessors, (196), 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 17:38:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 196 transitions. [2024-10-13 17:38:57,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 147 states and 196 transitions. [2024-10-13 17:38:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:38:57,452 INFO L425 stractBuchiCegarLoop]: Abstraction has 147 states and 196 transitions. [2024-10-13 17:38:57,452 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:38:57,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 196 transitions. [2024-10-13 17:38:57,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2024-10-13 17:38:57,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:57,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:57,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:57,459 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] [2024-10-13 17:38:57,460 INFO L745 eck$LassoCheckResult]: Stem: 389#$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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 390#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 387#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 388#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 467#valid_product_returnLabel#1 main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 468#L902 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 451#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 452#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 425#L251-2 [2024-10-13 17:38:57,460 INFO L747 eck$LassoCheckResult]: Loop: 425#L251-2 assume !false; 426#L252 assume test_~splverifierCounter~0#1 < 4; 427#L253 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 463#L261 assume !(0 != test_~tmp~3#1); 424#L261-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 393#L271 assume !(0 != test_~tmp___0~1#1); 376#L271-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 361#L281 assume 0 != test_~tmp___2~0#1; 362#L287-2 assume { :begin_inline_timeShift } true; 472#L67 assume !(0 != ~pumpRunning~0); 364#L67-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 365#L125 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; 464#L99-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 340#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 341#L99-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 379#L125-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 380#L74-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 448#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret20#1;havoc __utac_acc__Specification2_spec__2_#t~ret20#1; 369#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 371#L324-1 havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 441#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 425#L251-2 [2024-10-13 17:38:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-10-13 17:38:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:57,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371383194] [2024-10-13 17:38:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,482 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:57,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:57,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1619798035, now seen corresponding path program 1 times [2024-10-13 17:38:57,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:57,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876743153] [2024-10-13 17:38:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:57,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:38:57,534 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 17:38:57,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:38:57,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876743153] [2024-10-13 17:38:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876743153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:38:57,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:38:57,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:38:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933130080] [2024-10-13 17:38:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:38:57,536 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:38:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:38:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:38:57,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:38:57,537 INFO L87 Difference]: Start difference. First operand 147 states and 196 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 17:38:57,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:38:57,638 INFO L93 Difference]: Finished difference Result 205 states and 264 transitions. [2024-10-13 17:38:57,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 264 transitions. [2024-10-13 17:38:57,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2024-10-13 17:38:57,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 205 states and 264 transitions. [2024-10-13 17:38:57,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 205 [2024-10-13 17:38:57,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2024-10-13 17:38:57,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 205 states and 264 transitions. [2024-10-13 17:38:57,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:38:57,651 INFO L218 hiAutomatonCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-10-13 17:38:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states and 264 transitions. [2024-10-13 17:38:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-13 17:38:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.2878048780487805) internal successors, (264), 204 states have internal predecessors, (264), 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 17:38:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2024-10-13 17:38:57,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-10-13 17:38:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:38:57,664 INFO L425 stractBuchiCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-10-13 17:38:57,664 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:38:57,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 264 transitions. [2024-10-13 17:38:57,666 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2024-10-13 17:38:57,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:38:57,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:38:57,667 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:38:57,667 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] [2024-10-13 17:38:57,667 INFO L745 eck$LassoCheckResult]: Stem: 746#$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;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 747#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret50#1, main_~retValue_acc~9#1, main_~tmp~8#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 744#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 745#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 829#valid_product_returnLabel#1 main_#t~ret50#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret50#1;havoc main_#t~ret50#1; 830#L902 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 811#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 812#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 846#L251-2 [2024-10-13 17:38:57,668 INFO L747 eck$LassoCheckResult]: Loop: 846#L251-2 assume !false; 891#L252 assume test_~splverifierCounter~0#1 < 4; 890#L253 havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1; 888#L261 assume !(0 != test_~tmp~3#1); 886#L261-2 havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 884#L271 assume !(0 != test_~tmp___0~1#1); 882#L271-2 havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 880#L281 assume 0 != test_~tmp___2~0#1; 834#L287-2 assume { :begin_inline_timeShift } true; 835#L67 assume !(0 != ~pumpRunning~0); 721#L67-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 722#L125 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; 827#L99-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 763#L430-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 764#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 768#L227-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 771#L227-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 772#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#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; 816#L103-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 755#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 756#L99-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 845#L125-1 havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 899#L74-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 898#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret20#1;havoc __utac_acc__Specification2_spec__2_#t~ret20#1; 896#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 893#L324-1 havoc __utac_acc__Specification2_spec__2_#t~ret20#1, __utac_acc__Specification2_spec__2_#t~ret21#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 892#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 846#L251-2 [2024-10-13 17:38:57,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:57,668 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-10-13 17:38:57,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:57,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497824556] [2024-10-13 17:38:57,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:57,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:57,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:57,714 INFO L85 PathProgramCache]: Analyzing trace with hash 825140485, now seen corresponding path program 1 times [2024-10-13 17:38:57,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:57,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91346956] [2024-10-13 17:38:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:57,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:57,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:38:57,746 INFO L85 PathProgramCache]: Analyzing trace with hash 995915900, now seen corresponding path program 1 times [2024-10-13 17:38:57,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:38:57,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682480458] [2024-10-13 17:38:57,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:38:57,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:38:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:57,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:38:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:58,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:38:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:38:58,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:38:58 BoogieIcfgContainer [2024-10-13 17:38:58,847 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:38:58,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:38:58,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:38:58,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:38:58,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:38:56" (3/4) ... [2024-10-13 17:38:58,853 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:38:58,912 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:38:58,912 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:38:58,913 INFO L158 Benchmark]: Toolchain (without parser) took 3561.50ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 103.8MB in the beginning and 144.3MB in the end (delta: -40.5MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,913 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:38:58,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.31ms. Allocated memory is still 159.4MB. Free memory was 103.5MB in the beginning and 83.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.16ms. Allocated memory is still 159.4MB. Free memory was 83.0MB in the beginning and 79.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,914 INFO L158 Benchmark]: Boogie Preprocessor took 61.87ms. Allocated memory is still 159.4MB. Free memory was 79.6MB in the beginning and 76.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,915 INFO L158 Benchmark]: RCFGBuilder took 666.43ms. Allocated memory is still 159.4MB. Free memory was 76.2MB in the beginning and 106.0MB in the end (delta: -29.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,915 INFO L158 Benchmark]: BuchiAutomizer took 2266.88ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 106.0MB in the beginning and 147.5MB in the end (delta: -41.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,915 INFO L158 Benchmark]: Witness Printer took 64.46ms. Allocated memory is still 205.5MB. Free memory was 147.5MB in the beginning and 144.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:38:58,918 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.31ms. Allocated memory is still 159.4MB. Free memory was 103.5MB in the beginning and 83.0MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.16ms. Allocated memory is still 159.4MB. Free memory was 83.0MB in the beginning and 79.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.87ms. Allocated memory is still 159.4MB. Free memory was 79.6MB in the beginning and 76.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 666.43ms. Allocated memory is still 159.4MB. Free memory was 76.2MB in the beginning and 106.0MB in the end (delta: -29.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2266.88ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 106.0MB in the beginning and 147.5MB in the end (delta: -41.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 64.46ms. Allocated memory is still 205.5MB. Free memory was 147.5MB in the beginning and 144.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 237]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [237] - GenericResultAtLocation [Line: 305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [305] - GenericResultAtLocation [Line: 345]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [345] - GenericResultAtLocation [Line: 440]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [440] - GenericResultAtLocation [Line: 449]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [449] - GenericResultAtLocation [Line: 815]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [815] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [915] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 205 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 342 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 342 mSDsluCounter, 900 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 489 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 411 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 251]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L307] int methAndRunningLastTime ; [L347] int waterLevel = 1; [L348] int methaneLevelCritical = 0; [L619] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L816] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] int retValue_acc ; [L894] int tmp ; [L898] FCALL select_helpers() [L899] FCALL select_features() [L900] CALL, EXPR valid_product() [L942] int retValue_acc ; [L945] retValue_acc = 1 [L946] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] RET, EXPR valid_product() [L900] tmp = valid_product() [L902] COND TRUE \read(tmp) [L904] FCALL setup() [L905] CALL runTest() [L883] CALL __utac_acc__Specification2_spec__1() [L312] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] RET __utac_acc__Specification2_spec__1() [L884] CALL test() [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp)) [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND TRUE \read(tmp___2) [L294] CALL timeShift() [L67] COND FALSE !(\read(pumpRunning)) [L74] COND TRUE \read(systemActive) [L76] CALL processEnvironment() [L122] int tmp ; [L125] COND FALSE !(\read(pumpRunning)) [L140] CALL processEnvironment__wrappee__highWaterSensor() [L96] int tmp ; [L99] COND TRUE ! pumpRunning [L101] CALL, EXPR isHighWaterLevel() [L219] int retValue_acc ; [L220] int tmp ; [L221] int tmp___0 ; [L225] CALL, EXPR isHighWaterSensorDry() [L427] int retValue_acc ; [L430] COND TRUE waterLevel < 2 [L431] retValue_acc = 1 [L432] return (retValue_acc); [L225] RET, EXPR isHighWaterSensorDry() [L225] tmp = isHighWaterSensorDry() [L227] COND TRUE \read(tmp) [L228] tmp___0 = 0 [L232] retValue_acc = tmp___0 [L233] return (retValue_acc); [L101] RET, EXPR isHighWaterLevel() [L101] tmp = isHighWaterLevel() [L103] COND FALSE !(\read(tmp)) [L109] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment__wrappee__highWaterSensor() [L76] RET processEnvironment() [L82] CALL __utac_acc__Specification2_spec__2() [L317] int tmp ; [L318] int tmp___0 ; [L322] CALL, EXPR isMethaneLevelCritical() [L386] int retValue_acc ; [L389] retValue_acc = methaneLevelCritical [L390] return (retValue_acc); [L322] RET, EXPR isMethaneLevelCritical() [L322] tmp = isMethaneLevelCritical() [L324] COND FALSE !(\read(tmp)) [L340] methAndRunningLastTime = 0 [L82] RET __utac_acc__Specification2_spec__2() [L294] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 251]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L307] int methAndRunningLastTime ; [L347] int waterLevel = 1; [L348] int methaneLevelCritical = 0; [L619] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L816] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] int retValue_acc ; [L894] int tmp ; [L898] FCALL select_helpers() [L899] FCALL select_features() [L900] CALL, EXPR valid_product() [L942] int retValue_acc ; [L945] retValue_acc = 1 [L946] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] RET, EXPR valid_product() [L900] tmp = valid_product() [L902] COND TRUE \read(tmp) [L904] FCALL setup() [L905] CALL runTest() [L883] CALL __utac_acc__Specification2_spec__1() [L312] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] RET __utac_acc__Specification2_spec__1() [L884] CALL test() [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp)) [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND TRUE \read(tmp___2) [L294] CALL timeShift() [L67] COND FALSE !(\read(pumpRunning)) [L74] COND TRUE \read(systemActive) [L76] CALL processEnvironment() [L122] int tmp ; [L125] COND FALSE !(\read(pumpRunning)) [L140] CALL processEnvironment__wrappee__highWaterSensor() [L96] int tmp ; [L99] COND TRUE ! pumpRunning [L101] CALL, EXPR isHighWaterLevel() [L219] int retValue_acc ; [L220] int tmp ; [L221] int tmp___0 ; [L225] CALL, EXPR isHighWaterSensorDry() [L427] int retValue_acc ; [L430] COND TRUE waterLevel < 2 [L431] retValue_acc = 1 [L432] return (retValue_acc); [L225] RET, EXPR isHighWaterSensorDry() [L225] tmp = isHighWaterSensorDry() [L227] COND TRUE \read(tmp) [L228] tmp___0 = 0 [L232] retValue_acc = tmp___0 [L233] return (retValue_acc); [L101] RET, EXPR isHighWaterLevel() [L101] tmp = isHighWaterLevel() [L103] COND FALSE !(\read(tmp)) [L109] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment__wrappee__highWaterSensor() [L76] RET processEnvironment() [L82] CALL __utac_acc__Specification2_spec__2() [L317] int tmp ; [L318] int tmp___0 ; [L322] CALL, EXPR isMethaneLevelCritical() [L386] int retValue_acc ; [L389] retValue_acc = methaneLevelCritical [L390] return (retValue_acc); [L322] RET, EXPR isMethaneLevelCritical() [L322] tmp = isMethaneLevelCritical() [L324] COND FALSE !(\read(tmp)) [L340] methAndRunningLastTime = 0 [L82] RET __utac_acc__Specification2_spec__2() [L294] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:38:58,948 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)