./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product39.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 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:02:55,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:02:55,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:02:55,297 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:02:55,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:02:55,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:02:55,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:02:55,333 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:02:55,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:02:55,335 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:02:55,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:02:55,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:02:55,337 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:02:55,339 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:02:55,339 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:02:55,339 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:02:55,339 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:02:55,340 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:02:55,340 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:02:55,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:02:55,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:02:55,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:02:55,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:02:55,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:02:55,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:02:55,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:02:55,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:02:55,346 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:02:55,347 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:02:55,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:02:55,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:02:55,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:02:55,347 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:02:55,348 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:02:55,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859282ae831edbc368c6c02a28d784b7a1a4e20c5d272fba61fe5454e7afcc18 [2024-11-09 16:02:55,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:02:55,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:02:55,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:02:55,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:02:55,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:02:55,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2024-11-09 16:02:57,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:02:57,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:02:57,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product39.cil.c [2024-11-09 16:02:57,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fdc7ad97/1d48c6382db84c7da9577c3768d02ff0/FLAG868e5fe3a [2024-11-09 16:02:57,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fdc7ad97/1d48c6382db84c7da9577c3768d02ff0 [2024-11-09 16:02:57,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:02:57,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:02:57,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:57,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:02:57,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:02:57,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:57,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f65578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57, skipping insertion in model container [2024-11-09 16:02:57,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:57,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:02:57,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:57,862 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:02:57,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-09 16:02:57,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-11-09 16:02:57,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] [2024-11-09 16:02:57,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] [2024-11-09 16:02:57,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [456] [2024-11-09 16:02:57,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [465] [2024-11-09 16:02:57,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [831] [2024-11-09 16:02:57,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [927] [2024-11-09 16:02:57,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:57,981 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:02:57,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57 WrapperNode [2024-11-09 16:02:57,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:57,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:57,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:02:57,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:02:57,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,045 INFO L138 Inliner]: procedures = 54, calls = 101, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 571 [2024-11-09 16:02:58,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:58,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:02:58,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:02:58,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:02:58,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,083 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 16:02:58,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:02:58,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:02:58,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:02:58,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:02:58,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (1/1) ... [2024-11-09 16:02:58,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:02:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:02:58,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:02:58,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 16:02:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:02:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:02:58,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:02:58,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:02:58,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:02:58,261 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:02:58,761 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-09 16:02:58,762 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:02:58,781 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:02:58,781 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:02:58,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:58 BoogieIcfgContainer [2024-11-09 16:02:58,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:02:58,783 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:02:58,783 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:02:58,786 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:02:58,788 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:58,788 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:02:57" (1/3) ... [2024-11-09 16:02:58,789 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a7686dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:58, skipping insertion in model container [2024-11-09 16:02:58,789 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:58,789 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:57" (2/3) ... [2024-11-09 16:02:58,790 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a7686dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:58, skipping insertion in model container [2024-11-09 16:02:58,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:58,791 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:58" (3/3) ... [2024-11-09 16:02:58,792 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product39.cil.c [2024-11-09 16:02:58,846 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:02:58,846 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:02:58,846 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:02:58,846 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:02:58,847 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:02:58,847 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:02:58,847 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:02:58,847 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:02:58,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.369047619047619) internal successors, (230), 168 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:58,879 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2024-11-09 16:02:58,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:58,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:58,889 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:58,889 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:58,889 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:02:58,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 169 states, 168 states have (on average 1.369047619047619) internal successors, (230), 168 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:58,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2024-11-09 16:02:58,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:58,900 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:58,900 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:58,901 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:58,906 INFO L745 eck$LassoCheckResult]: Stem: 36#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 135#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 116#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 101#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 88#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 136#L400-2true [2024-11-09 16:02:58,906 INFO L747 eck$LassoCheckResult]: Loop: 136#L400-2true assume !false; 14#L401true assume test_~splverifierCounter~0#1 < 4; 112#L402true havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 124#L410true assume !(0 != test_~tmp~3#1); 9#L410-2true havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 42#L420true assume !(0 != test_~tmp___0~1#1); 12#L420-2true havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 21#L430true assume 0 != test_~tmp___2~0#1; 68#L436-2true assume { :begin_inline_timeShift } true; 32#L203true assume !(0 != ~pumpRunning~0); 81#L203-2true assume !(0 != ~systemActive~0); 34#L210-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 85#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 107#L937true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 144#L943-1true havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 76#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 136#L400-2true [2024-11-09 16:02:58,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-09 16:02:58,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738921046] [2024-11-09 16:02:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:59,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash 169792598, now seen corresponding path program 1 times [2024-11-09 16:02:59,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:59,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467299388] [2024-11-09 16:02:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:59,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:59,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1525211674, now seen corresponding path program 1 times [2024-11-09 16:02:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:59,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835236237] [2024-11-09 16:02:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:02:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:02:59,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:02:59,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835236237] [2024-11-09 16:02:59,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835236237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:02:59,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:02:59,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:02:59,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652278588] [2024-11-09 16:02:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:02:59,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:02:59,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:02:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:02:59,539 INFO L87 Difference]: Start difference. First operand has 169 states, 168 states have (on average 1.369047619047619) internal successors, (230), 168 states have internal predecessors, (230), 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) [2024-11-09 16:02:59,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:02:59,694 INFO L93 Difference]: Finished difference Result 389 states and 512 transitions. [2024-11-09 16:02:59,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 512 transitions. [2024-11-09 16:02:59,702 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 251 [2024-11-09 16:02:59,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 359 states and 482 transitions. [2024-11-09 16:02:59,710 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2024-11-09 16:02:59,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2024-11-09 16:02:59,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 482 transitions. [2024-11-09 16:02:59,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:02:59,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 359 states and 482 transitions. [2024-11-09 16:02:59,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 482 transitions. [2024-11-09 16:02:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 211. [2024-11-09 16:02:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3412322274881516) internal successors, (283), 210 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 283 transitions. [2024-11-09 16:02:59,753 INFO L240 hiAutomatonCegarLoop]: Abstraction has 211 states and 283 transitions. [2024-11-09 16:02:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 16:02:59,760 INFO L425 stractBuchiCegarLoop]: Abstraction has 211 states and 283 transitions. [2024-11-09 16:02:59,761 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:02:59,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 283 transitions. [2024-11-09 16:02:59,766 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2024-11-09 16:02:59,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:59,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:59,769 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:59,769 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] [2024-11-09 16:02:59,769 INFO L745 eck$LassoCheckResult]: Stem: 632#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 633#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 623#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 624#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 712#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 703#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 695#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 682#L400-2 [2024-11-09 16:02:59,769 INFO L747 eck$LassoCheckResult]: Loop: 682#L400-2 assume !false; 592#L401 assume test_~splverifierCounter~0#1 < 4; 593#L402 havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 710#L410 assume !(0 != test_~tmp~3#1); 584#L410-2 havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 585#L420 assume !(0 != test_~tmp___0~1#1); 588#L420-2 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 589#L430 assume 0 != test_~tmp___2~0#1; 609#L436-2 assume { :begin_inline_timeShift } true; 625#L203 assume !(0 != ~pumpRunning~0); 626#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 690#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 667#L235-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 578#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 579#L235-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 634#L261-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 629#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 630#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 692#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 672#L943-1 havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 681#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 682#L400-2 [2024-11-09 16:02:59,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:59,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-09 16:02:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:59,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838146775] [2024-11-09 16:02:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:59,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,783 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:59,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:59,798 INFO L85 PathProgramCache]: Analyzing trace with hash -94498880, now seen corresponding path program 1 times [2024-11-09 16:02:59,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:59,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280600494] [2024-11-09 16:02:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:02:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:02:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:02:59,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280600494] [2024-11-09 16:02:59,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280600494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:02:59,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:02:59,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 16:02:59,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18319080] [2024-11-09 16:02:59,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:02:59,832 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:02:59,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:02:59,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 16:02:59,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 16:02:59,833 INFO L87 Difference]: Start difference. First operand 211 states and 283 transitions. cyclomatic complexity: 75 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) [2024-11-09 16:02:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:02:59,933 INFO L93 Difference]: Finished difference Result 267 states and 343 transitions. [2024-11-09 16:02:59,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 343 transitions. [2024-11-09 16:02:59,938 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2024-11-09 16:02:59,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 343 transitions. [2024-11-09 16:02:59,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2024-11-09 16:02:59,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2024-11-09 16:02:59,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 343 transitions. [2024-11-09 16:02:59,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:02:59,946 INFO L218 hiAutomatonCegarLoop]: Abstraction has 267 states and 343 transitions. [2024-11-09 16:02:59,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 343 transitions. [2024-11-09 16:02:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-09 16:02:59,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2846441947565543) internal successors, (343), 266 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 343 transitions. [2024-11-09 16:02:59,962 INFO L240 hiAutomatonCegarLoop]: Abstraction has 267 states and 343 transitions. [2024-11-09 16:02:59,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 16:02:59,965 INFO L425 stractBuchiCegarLoop]: Abstraction has 267 states and 343 transitions. [2024-11-09 16:02:59,965 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:02:59,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 343 transitions. [2024-11-09 16:02:59,967 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 191 [2024-11-09 16:02:59,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:59,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:59,968 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:59,971 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] [2024-11-09 16:02:59,972 INFO L745 eck$LassoCheckResult]: Stem: 1113#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1114#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1105#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1106#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1209#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1195#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1183#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 1184#L400-2 [2024-11-09 16:02:59,972 INFO L747 eck$LassoCheckResult]: Loop: 1184#L400-2 assume !false; 1074#L401 assume test_~splverifierCounter~0#1 < 4; 1075#L402 havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1306#L410 assume !(0 != test_~tmp~3#1); 1066#L410-2 havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1067#L420 assume !(0 != test_~tmp___0~1#1); 1070#L420-2 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1071#L430 assume 0 != test_~tmp___2~0#1; 1093#L436-2 assume { :begin_inline_timeShift } true; 1108#L203 assume !(0 != ~pumpRunning~0); 1109#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1234#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1151#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#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~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1152#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1136#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1062#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1063#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1198#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#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~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 1223#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1124#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1125#L235-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1115#L261-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1194#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1177#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1178#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1156#L943-1 havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1297#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1184#L400-2 [2024-11-09 16:02:59,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-09 16:02:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:59,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787838991] [2024-11-09 16:02:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:59,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,009 INFO L85 PathProgramCache]: Analyzing trace with hash 969572534, now seen corresponding path program 1 times [2024-11-09 16:03:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225504434] [2024-11-09 16:03:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:03:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:03:00,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:03:00,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225504434] [2024-11-09 16:03:00,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225504434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:03:00,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:03:00,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 16:03:00,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533040220] [2024-11-09 16:03:00,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:03:00,071 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:03:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:03:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 16:03:00,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 16:03:00,073 INFO L87 Difference]: Start difference. First operand 267 states and 343 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:03:00,158 INFO L93 Difference]: Finished difference Result 279 states and 355 transitions. [2024-11-09 16:03:00,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 355 transitions. [2024-11-09 16:03:00,160 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2024-11-09 16:03:00,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 355 transitions. [2024-11-09 16:03:00,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2024-11-09 16:03:00,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2024-11-09 16:03:00,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 355 transitions. [2024-11-09 16:03:00,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:03:00,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 279 states and 355 transitions. [2024-11-09 16:03:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 355 transitions. [2024-11-09 16:03:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-11-09 16:03:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2724014336917562) internal successors, (355), 278 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 355 transitions. [2024-11-09 16:03:00,178 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 355 transitions. [2024-11-09 16:03:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 16:03:00,181 INFO L425 stractBuchiCegarLoop]: Abstraction has 279 states and 355 transitions. [2024-11-09 16:03:00,182 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 16:03:00,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 355 transitions. [2024-11-09 16:03:00,183 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2024-11-09 16:03:00,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:00,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:00,184 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:00,184 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] [2024-11-09 16:03:00,184 INFO L745 eck$LassoCheckResult]: Stem: 1668#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1669#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1659#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1660#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1760#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1747#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1736#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 1737#L400-2 [2024-11-09 16:03:00,185 INFO L747 eck$LassoCheckResult]: Loop: 1737#L400-2 assume !false; 1627#L401 assume test_~splverifierCounter~0#1 < 4; 1628#L402 havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1757#L410 assume !(0 != test_~tmp~3#1); 1619#L410-2 havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1620#L420 assume !(0 != test_~tmp___0~1#1); 1623#L420-2 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 1624#L430 assume 0 != test_~tmp___2~0#1; 1647#L436-2 assume { :begin_inline_timeShift } true; 1661#L203 assume !(0 != ~pumpRunning~0); 1662#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1785#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 1704#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#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~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1705#L178-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~4#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1691#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 1615#L363-3 assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1; 1616#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1751#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#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~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 1774#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1678#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1679#L235-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1670#L261-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 1666#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1667#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1731#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1708#L943-1 havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1776#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1737#L400-2 [2024-11-09 16:03:00,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-09 16:03:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755435966] [2024-11-09 16:03:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1227737972, now seen corresponding path program 1 times [2024-11-09 16:03:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151929273] [2024-11-09 16:03:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:03:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:03:00,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:03:00,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151929273] [2024-11-09 16:03:00,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151929273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:03:00,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:03:00,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:03:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112540686] [2024-11-09 16:03:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:03:00,313 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:03:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:03:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 16:03:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 16:03:00,328 INFO L87 Difference]: Start difference. First operand 279 states and 355 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:03:00,444 INFO L93 Difference]: Finished difference Result 297 states and 373 transitions. [2024-11-09 16:03:00,445 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 373 transitions. [2024-11-09 16:03:00,447 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2024-11-09 16:03:00,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 297 states and 373 transitions. [2024-11-09 16:03:00,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2024-11-09 16:03:00,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 297 [2024-11-09 16:03:00,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 373 transitions. [2024-11-09 16:03:00,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:03:00,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 297 states and 373 transitions. [2024-11-09 16:03:00,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states and 373 transitions. [2024-11-09 16:03:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2024-11-09 16:03:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2558922558922558) internal successors, (373), 296 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 373 transitions. [2024-11-09 16:03:00,463 INFO L240 hiAutomatonCegarLoop]: Abstraction has 297 states and 373 transitions. [2024-11-09 16:03:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:03:00,468 INFO L425 stractBuchiCegarLoop]: Abstraction has 297 states and 373 transitions. [2024-11-09 16:03:00,468 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 16:03:00,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 373 transitions. [2024-11-09 16:03:00,470 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2024-11-09 16:03:00,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:00,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:00,475 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:00,475 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] [2024-11-09 16:03:00,476 INFO L745 eck$LassoCheckResult]: Stem: 2252#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 2253#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2243#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2244#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2348#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 2332#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2321#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 2306#L400-2 [2024-11-09 16:03:00,476 INFO L747 eck$LassoCheckResult]: Loop: 2306#L400-2 assume !false; 2459#L401 assume test_~splverifierCounter~0#1 < 4; 2344#L402 havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2345#L410 assume !(0 != test_~tmp~3#1); 2203#L410-2 havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2204#L420 assume !(0 != test_~tmp___0~1#1); 2466#L420-2 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 2227#L430 assume 0 != test_~tmp___2~0#1; 2229#L436-2 assume { :begin_inline_timeShift } true; 2245#L203 assume !(0 != ~pumpRunning~0); 2246#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 2314#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2290#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#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~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 2291#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 2363#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 2390#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 2386#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2384#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#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~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 2382#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2263#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2264#L235-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2254#L261-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 2330#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 2462#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2461#L937 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 2460#L943-1 havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2305#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2306#L400-2 [2024-11-09 16:03:00,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-09 16:03:00,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718569299] [2024-11-09 16:03:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1980689784, now seen corresponding path program 1 times [2024-11-09 16:03:00,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927487963] [2024-11-09 16:03:00,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1938989772, now seen corresponding path program 1 times [2024-11-09 16:03:00,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196916816] [2024-11-09 16:03:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:03:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:03:00,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:03:00,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196916816] [2024-11-09 16:03:00,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196916816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:03:00,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:03:00,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 16:03:00,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226796138] [2024-11-09 16:03:00,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:03:00,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:03:00,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 16:03:00,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 16:03:00,793 INFO L87 Difference]: Start difference. First operand 297 states and 373 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:03:00,903 INFO L93 Difference]: Finished difference Result 587 states and 727 transitions. [2024-11-09 16:03:00,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 727 transitions. [2024-11-09 16:03:00,907 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 422 [2024-11-09 16:03:00,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 727 transitions. [2024-11-09 16:03:00,911 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2024-11-09 16:03:00,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2024-11-09 16:03:00,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 727 transitions. [2024-11-09 16:03:00,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:03:00,913 INFO L218 hiAutomatonCegarLoop]: Abstraction has 587 states and 727 transitions. [2024-11-09 16:03:00,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 727 transitions. [2024-11-09 16:03:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-11-09 16:03:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.2385008517887564) internal successors, (727), 586 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 727 transitions. [2024-11-09 16:03:00,927 INFO L240 hiAutomatonCegarLoop]: Abstraction has 587 states and 727 transitions. [2024-11-09 16:03:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:03:00,929 INFO L425 stractBuchiCegarLoop]: Abstraction has 587 states and 727 transitions. [2024-11-09 16:03:00,930 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-09 16:03:00,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 727 transitions. [2024-11-09 16:03:00,933 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 422 [2024-11-09 16:03:00,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:00,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:00,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:00,935 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] [2024-11-09 16:03:00,936 INFO L745 eck$LassoCheckResult]: Stem: 3151#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 3152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 3142#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3143#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3261#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 3243#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 3226#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#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; 3227#L400-2 [2024-11-09 16:03:00,936 INFO L747 eck$LassoCheckResult]: Loop: 3227#L400-2 assume !false; 3520#L401 assume test_~splverifierCounter~0#1 < 4; 3518#L402 havoc test_#t~nondet22#1;test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 3515#L410 assume !(0 != test_~tmp~3#1); 3510#L410-2 havoc test_#t~nondet23#1;test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3508#L420 assume !(0 != test_~tmp___0~1#1); 3507#L420-2 havoc test_#t~nondet24#1;test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3557#L430 assume 0 != test_~tmp___2~0#1; 3502#L436-2 assume { :begin_inline_timeShift } true; 3501#L203 assume !(0 != ~pumpRunning~0); 3406#L203-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 3404#L261 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 3402#L235-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~7#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~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 3401#L178-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 3400#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1; 3325#L363-3 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3326#L363-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3392#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret10#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~7#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~ret10#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1; 3307#L239-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3163#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3164#L235-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret10#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3153#L261-1 havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 3240#L210-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 3530#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 3528#L937 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;havoc getWaterLevel_~retValue_acc~3#1;getWaterLevel_~retValue_acc~3#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~3#1; 3527#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~3#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 3524#L943 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 3523#L943-1 havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3522#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3227#L400-2 [2024-11-09 16:03:00,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-11-09 16:03:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689089768] [2024-11-09 16:03:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 773564397, now seen corresponding path program 1 times [2024-11-09 16:03:00,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610948538] [2024-11-09 16:03:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:00,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:00,978 INFO L85 PathProgramCache]: Analyzing trace with hash 647829673, now seen corresponding path program 1 times [2024-11-09 16:03:00,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:00,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920398746] [2024-11-09 16:03:00,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:00,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:00,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:01,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:01,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:03:01 BoogieIcfgContainer [2024-11-09 16:03:01,902 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:03:01,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:03:01,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:03:01,903 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:03:01,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:58" (3/4) ... [2024-11-09 16:03:01,905 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:03:01,974 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:03:01,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:03:01,976 INFO L158 Benchmark]: Toolchain (without parser) took 4534.92ms. Allocated memory was 134.2MB in the beginning and 228.6MB in the end (delta: 94.4MB). Free memory was 62.7MB in the beginning and 88.8MB in the end (delta: -26.2MB). Peak memory consumption was 71.0MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,976 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:03:01,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.54ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 62.5MB in the beginning and 138.3MB in the end (delta: -75.8MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.75ms. Allocated memory is still 180.4MB. Free memory was 138.3MB in the beginning and 135.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,977 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 180.4MB. Free memory was 135.3MB in the beginning and 132.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,977 INFO L158 Benchmark]: RCFGBuilder took 676.45ms. Allocated memory is still 180.4MB. Free memory was 132.0MB in the beginning and 103.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,977 INFO L158 Benchmark]: BuchiAutomizer took 3119.09ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 103.5MB in the beginning and 92.0MB in the end (delta: 11.5MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,978 INFO L158 Benchmark]: Witness Printer took 72.61ms. Allocated memory is still 228.6MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:03:01,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.54ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 62.5MB in the beginning and 138.3MB in the end (delta: -75.8MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.75ms. Allocated memory is still 180.4MB. Free memory was 138.3MB in the beginning and 135.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 180.4MB. Free memory was 135.3MB in the beginning and 132.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 676.45ms. Allocated memory is still 180.4MB. Free memory was 132.0MB in the beginning and 103.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 3119.09ms. Allocated memory was 180.4MB in the beginning and 228.6MB in the end (delta: 48.2MB). Free memory was 103.5MB in the beginning and 92.0MB in the end (delta: 11.5MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Witness Printer took 72.61ms. Allocated memory is still 228.6MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] - GenericResultAtLocation [Line: 456]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [456] - GenericResultAtLocation [Line: 465]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [465] - GenericResultAtLocation [Line: 831]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [831] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [927] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 587 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 148 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, 909 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 909 mSDsluCounter, 3395 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2333 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 326 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 1062 mSDtfsCounter, 326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 400]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L196] int systemActive = 1; [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp___2) [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) [L210] COND TRUE \read(systemActive) [L212] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__highWaterSensor() [L232] int tmp ; [L235] COND TRUE ! pumpRunning [L237] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L237] RET, EXPR isHighWaterLevel() [L237] tmp = isHighWaterLevel() [L239] COND FALSE !(\read(tmp)) [L245] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment__wrappee__highWaterSensor() [L212] RET processEnvironment() [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND FALSE !(tmp___0 == 2) [L218] RET __utac_acc__Specification3_spec__1() [L445] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 400]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L195] int pumpRunning = 0; [L196] int systemActive = 1; [L635] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L391] int splverifierCounter ; [L392] int tmp ; [L393] int tmp___0 ; [L394] int tmp___1 ; [L395] int tmp___2 ; [L398] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L400] COND TRUE 1 [L402] COND TRUE splverifierCounter < 4 [L408] tmp = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp)) [L418] tmp___0 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___0)) [L428] tmp___2 = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp___2) [L445] CALL timeShift() [L203] COND FALSE !(\read(pumpRunning)) [L210] COND TRUE \read(systemActive) [L212] CALL processEnvironment() [L258] int tmp ; [L261] COND FALSE !(\read(pumpRunning)) [L276] CALL processEnvironment__wrappee__highWaterSensor() [L232] int tmp ; [L235] COND TRUE ! pumpRunning [L237] CALL, EXPR isHighWaterLevel() [L355] int retValue_acc ; [L356] int tmp ; [L357] int tmp___0 ; [L361] CALL, EXPR isHighWaterSensorDry() [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L361] RET, EXPR isHighWaterSensorDry() [L361] tmp = isHighWaterSensorDry() [L363] COND TRUE \read(tmp) [L364] tmp___0 = 0 [L368] retValue_acc = tmp___0 [L369] return (retValue_acc); [L237] RET, EXPR isHighWaterLevel() [L237] tmp = isHighWaterLevel() [L239] COND FALSE !(\read(tmp)) [L245] FCALL processEnvironment__wrappee__base() [L276] RET processEnvironment__wrappee__highWaterSensor() [L212] RET processEnvironment() [L218] CALL __utac_acc__Specification3_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L935] CALL, EXPR isMethaneLevelCritical() [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L935] RET, EXPR isMethaneLevelCritical() [L935] tmp = isMethaneLevelCritical() [L937] COND FALSE !(\read(tmp)) [L941] CALL, EXPR getWaterLevel() [L166] int retValue_acc ; [L169] retValue_acc = waterLevel [L170] return (retValue_acc); [L941] RET, EXPR getWaterLevel() [L941] tmp___0 = getWaterLevel() [L943] COND FALSE !(tmp___0 == 2) [L218] RET __utac_acc__Specification3_spec__1() [L445] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:03:02,004 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)