./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product63.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_spec2_product63.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:02:27,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:02:27,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:02:27,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:02:27,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:02:27,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:02:27,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:02:27,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:02:27,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:02:27,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:02:27,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:02:27,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:02:27,424 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:02:27,427 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:02:27,428 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:02:27,428 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:02:27,428 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:02:27,429 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:02:27,429 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:02:27,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:02:27,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:02:27,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:02:27,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:02:27,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:02:27,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:02:27,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:02:27,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:02:27,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:02:27,435 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:02:27,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:02:27,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:02:27,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:02:27,436 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:02:27,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:02:27,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:02:27,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:02:27,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:02:27,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:02:27,441 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:02:27,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2024-11-09 16:02:27,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:02:27,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:02:27,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:02:27,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:02:27,722 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:02:27,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-09 16:02:29,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:02:29,541 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:02:29,542 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-09 16:02:29,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0462d327f/094fb50cc3bf40eaa9bdb398c49250df/FLAG706dfa1a9 [2024-11-09 16:02:29,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0462d327f/094fb50cc3bf40eaa9bdb398c49250df [2024-11-09 16:02:29,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:02:29,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:02:29,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:29,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:02:29,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:02:29,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:29" (1/1) ... [2024-11-09 16:02:29,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a0f3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:29, skipping insertion in model container [2024-11-09 16:02:29,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:29" (1/1) ... [2024-11-09 16:02:29,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:02:30,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:30,232 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:02:30,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-09 16:02:30,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2024-11-09 16:02:30,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2024-11-09 16:02:30,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2024-11-09 16:02:30,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2024-11-09 16:02:30,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2024-11-09 16:02:30,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2024-11-09 16:02:30,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2024-11-09 16:02:30,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:30,341 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:02:30,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30 WrapperNode [2024-11-09 16:02:30,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:30,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:30,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:02:30,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:02:30,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,411 INFO L138 Inliner]: procedures = 59, calls = 108, calls flagged for inlining = 61, calls inlined = 179, statements flattened = 1226 [2024-11-09 16:02:30,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:30,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:02:30,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:02:30,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:02:30,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,448 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 16:02:30,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:02:30,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:02:30,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:02:30,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:02:30,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (1/1) ... [2024-11-09 16:02:30,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:02:30,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:02:30,537 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 16:02:30,540 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 16:02:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:02:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:02:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:02:30,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:02:30,673 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:02:30,676 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:02:31,371 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-11-09 16:02:31,372 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:02:31,398 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:02:31,400 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:02:31,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:31 BoogieIcfgContainer [2024-11-09 16:02:31,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:02:31,402 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:02:31,402 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:02:31,406 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:02:31,406 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:31,406 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:02:29" (1/3) ... [2024-11-09 16:02:31,407 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22653cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:31, skipping insertion in model container [2024-11-09 16:02:31,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:31,407 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:30" (2/3) ... [2024-11-09 16:02:31,408 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22653cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:31, skipping insertion in model container [2024-11-09 16:02:31,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:31,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:31" (3/3) ... [2024-11-09 16:02:31,410 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2024-11-09 16:02:31,467 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:02:31,467 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:02:31,468 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:02:31,468 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:02:31,468 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:02:31,468 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:02:31,468 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:02:31,468 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:02:31,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:31,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2024-11-09 16:02:31,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:31,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:31,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:31,517 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 16:02:31,517 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:02:31,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:31,530 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2024-11-09 16:02:31,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:31,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:31,532 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:31,532 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 16:02:31,538 INFO L745 eck$LassoCheckResult]: Stem: 196#$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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 211#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 297#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 111#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 125#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 91#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 134#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 126#L325-2true [2024-11-09 16:02:31,539 INFO L747 eck$LassoCheckResult]: Loop: 126#L325-2true assume !false; 191#L326true assume test_~splverifierCounter~0#1 < 4; 186#L327true havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 24#L335true assume !(0 != test_~tmp~2#1); 38#L335-2true havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 153#L345true assume !(0 != test_~tmp___0~1#1); 303#L345-2true havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 201#L355true assume 0 != test_~tmp___2~0#1; 296#L361-2true assume { :begin_inline_timeShift } true; 103#L391true assume !(0 != ~pumpRunning~0); 3#L391-2true assume !(0 != ~systemActive~0); 42#L398-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 320#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 101#L184true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 154#L184-1true havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 242#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 126#L325-2true [2024-11-09 16:02:31,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-09 16:02:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:31,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396294400] [2024-11-09 16:02:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:31,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:31,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:31,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:31,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:31,729 INFO L85 PathProgramCache]: Analyzing trace with hash -605398516, now seen corresponding path program 1 times [2024-11-09 16:02:31,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:31,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179852783] [2024-11-09 16:02:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:31,745 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:31,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:31,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -767685899, now seen corresponding path program 1 times [2024-11-09 16:02:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:31,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131068691] [2024-11-09 16:02:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:02:32,025 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 16:02:32,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:02:32,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131068691] [2024-11-09 16:02:32,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131068691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:02:32,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:02:32,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:02:32,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792442734] [2024-11-09 16:02:32,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:02:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:02:32,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:02:32,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:02:32,170 INFO L87 Difference]: Start difference. First operand has 329 states, 328 states have (on average 1.353658536585366) internal successors, (444), 328 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:32,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:02:32,343 INFO L93 Difference]: Finished difference Result 705 states and 936 transitions. [2024-11-09 16:02:32,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 936 transitions. [2024-11-09 16:02:32,357 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 461 [2024-11-09 16:02:32,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 675 states and 906 transitions. [2024-11-09 16:02:32,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 675 [2024-11-09 16:02:32,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 675 [2024-11-09 16:02:32,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 906 transitions. [2024-11-09 16:02:32,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:02:32,385 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 906 transitions. [2024-11-09 16:02:32,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 906 transitions. [2024-11-09 16:02:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 368. [2024-11-09 16:02:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 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 16:02:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 494 transitions. [2024-11-09 16:02:32,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 368 states and 494 transitions. [2024-11-09 16:02:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 16:02:32,460 INFO L425 stractBuchiCegarLoop]: Abstraction has 368 states and 494 transitions. [2024-11-09 16:02:32,460 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:02:32,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 368 states and 494 transitions. [2024-11-09 16:02:32,463 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2024-11-09 16:02:32,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:32,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:32,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:32,466 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:32,467 INFO L745 eck$LassoCheckResult]: Stem: 1317#$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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1318#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1108#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1109#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1231#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1232#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1205#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1206#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1247#L325-2 [2024-11-09 16:02:32,467 INFO L747 eck$LassoCheckResult]: Loop: 1247#L325-2 assume !false; 1248#L326 assume test_~splverifierCounter~0#1 < 4; 1312#L327 havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1099#L335 assume !(0 != test_~tmp~2#1); 1101#L335-2 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1123#L345 assume !(0 != test_~tmp___0~1#1); 1178#L345-2 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1322#L355 assume 0 != test_~tmp___2~0#1; 1323#L361-2 assume { :begin_inline_timeShift } true; 1221#L391 assume !(0 != ~pumpRunning~0); 1054#L391-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1055#L475 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1212#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret20#1;havoc isMethaneAlarm_#t~ret20#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 1364#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret18#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret18#1;havoc processEnvironment_#t~ret18#1; 1345#L479 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1199#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1184#L475-1 havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1128#L398-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1129#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 1218#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1087#L184-1 havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1284#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1247#L325-2 [2024-11-09 16:02:32,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:32,468 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-09 16:02:32,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:32,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239991995] [2024-11-09 16:02:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:32,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:32,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash 145292917, now seen corresponding path program 1 times [2024-11-09 16:02:32,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:32,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798503132] [2024-11-09 16:02:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:02:32,567 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 16:02:32,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:02:32,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798503132] [2024-11-09 16:02:32,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798503132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:02:32,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:02:32,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 16:02:32,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454706225] [2024-11-09 16:02:32,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:02:32,569 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:02:32,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:02:32,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 16:02:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 16:02:32,571 INFO L87 Difference]: Start difference. First operand 368 states and 494 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:02:32,685 INFO L93 Difference]: Finished difference Result 373 states and 476 transitions. [2024-11-09 16:02:32,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 373 states and 476 transitions. [2024-11-09 16:02:32,689 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2024-11-09 16:02:32,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 373 states to 373 states and 476 transitions. [2024-11-09 16:02:32,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 373 [2024-11-09 16:02:32,694 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 373 [2024-11-09 16:02:32,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 373 states and 476 transitions. [2024-11-09 16:02:32,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:02:32,698 INFO L218 hiAutomatonCegarLoop]: Abstraction has 373 states and 476 transitions. [2024-11-09 16:02:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states and 476 transitions. [2024-11-09 16:02:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2024-11-09 16:02:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 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 16:02:32,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 476 transitions. [2024-11-09 16:02:32,712 INFO L240 hiAutomatonCegarLoop]: Abstraction has 373 states and 476 transitions. [2024-11-09 16:02:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 16:02:32,714 INFO L425 stractBuchiCegarLoop]: Abstraction has 373 states and 476 transitions. [2024-11-09 16:02:32,718 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:02:32,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 373 states and 476 transitions. [2024-11-09 16:02:32,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2024-11-09 16:02:32,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:32,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:32,722 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:32,723 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 16:02:32,723 INFO L745 eck$LassoCheckResult]: Stem: 2027#$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);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2028#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1843#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1844#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1948#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1949#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1923#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1924#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1974#L325-2 [2024-11-09 16:02:32,724 INFO L747 eck$LassoCheckResult]: Loop: 1974#L325-2 assume !false; 2140#L326 assume test_~splverifierCounter~0#1 < 4; 2020#L327 havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1838#L335 assume !(0 != test_~tmp~2#1); 1840#L335-2 havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1854#L345 assume !(0 != test_~tmp___0~1#1); 1901#L345-2 havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 2067#L355 assume 0 != test_~tmp___2~0#1; 2149#L361-2 assume { :begin_inline_timeShift } true; 2148#L391 assume !(0 != ~pumpRunning~0); 1801#L391-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1802#L475 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1927#L449-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 2016#L423-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 2033#L294-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 2034#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret29#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret29#1;havoc isHighWaterLevel_#t~ret29#1; 1902#L594-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1903#L594-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1973#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 1911#L427-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1913#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1857#L423-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1858#L449-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1906#L475-1 havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1855#L398-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1856#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 1934#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1824#L184-1 havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1993#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1974#L325-2 [2024-11-09 16:02:32,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-09 16:02:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:32,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254972076] [2024-11-09 16:02:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:32,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1207911691, now seen corresponding path program 1 times [2024-11-09 16:02:32,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:32,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264431240] [2024-11-09 16:02:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:32,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:32,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash 2114328258, now seen corresponding path program 1 times [2024-11-09 16:02:32,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:32,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055996167] [2024-11-09 16:02:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,831 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:32,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:33,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:33,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:02:33 BoogieIcfgContainer [2024-11-09 16:02:33,814 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:02:33,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:02:33,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:02:33,815 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:02:33,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:31" (3/4) ... [2024-11-09 16:02:33,818 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:02:33,881 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:02:33,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:02:33,882 INFO L158 Benchmark]: Toolchain (without parser) took 4001.30ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 90.6MB in the beginning and 158.9MB in the end (delta: -68.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:02:33,883 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 122.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:02:33,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.23ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 120.9MB in the end (delta: -30.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-09 16:02:33,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.51ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 115.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 16:02:33,885 INFO L158 Benchmark]: Boogie Preprocessor took 81.07ms. Allocated memory is still 163.6MB. Free memory was 115.1MB in the beginning and 109.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 16:02:33,885 INFO L158 Benchmark]: RCFGBuilder took 906.04ms. Allocated memory is still 163.6MB. Free memory was 109.6MB in the beginning and 61.4MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-09 16:02:33,885 INFO L158 Benchmark]: BuchiAutomizer took 2412.72ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 60.6MB in the beginning and 162.1MB in the end (delta: -101.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:02:33,886 INFO L158 Benchmark]: Witness Printer took 66.36ms. Allocated memory is still 211.8MB. Free memory was 162.1MB in the beginning and 158.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:02:33,888 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 122.5MB in the end (delta: 160.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.23ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 120.9MB in the end (delta: -30.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.51ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 115.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.07ms. Allocated memory is still 163.6MB. Free memory was 115.1MB in the beginning and 109.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 906.04ms. Allocated memory is still 163.6MB. Free memory was 109.6MB in the beginning and 61.4MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2412.72ms. Allocated memory was 163.6MB in the beginning and 211.8MB in the end (delta: 48.2MB). Free memory was 60.6MB in the beginning and 162.1MB in the end (delta: -101.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.36ms. Allocated memory is still 211.8MB. Free memory was 162.1MB in the beginning and 158.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] - GenericResultAtLocation [Line: 205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] - GenericResultAtLocation [Line: 673]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 373 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 307 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, 1064 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1064 mSDsluCounter, 2315 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1574 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 741 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L172] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L370] CALL timeShift() [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L400] CALL processEnvironment() [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L490] CALL processEnvironment__wrappee__methaneQuery() [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L464] CALL processEnvironment__wrappee__highWaterSensor() [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L425] CALL, EXPR isHighWaterLevel() [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L592] CALL, EXPR isHighWaterSensorDry() [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] RET, EXPR isHighWaterSensorDry() [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] RET, EXPR isHighWaterLevel() [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L433] FCALL processEnvironment__wrappee__base() [L464] RET processEnvironment__wrappee__highWaterSensor() [L490] RET processEnvironment__wrappee__methaneQuery() [L400] RET processEnvironment() [L406] CALL __utac_acc__Specification2_spec__2() [L177] int tmp ; [L178] int tmp___0 ; [L182] CALL, EXPR isMethaneLevelCritical() [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] RET, EXPR isMethaneLevelCritical() [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 [L406] RET __utac_acc__Specification2_spec__2() [L370] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 325]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L172] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L370] CALL timeShift() [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L400] CALL processEnvironment() [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L490] CALL processEnvironment__wrappee__methaneQuery() [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L464] CALL processEnvironment__wrappee__highWaterSensor() [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L425] CALL, EXPR isHighWaterLevel() [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L592] CALL, EXPR isHighWaterSensorDry() [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] RET, EXPR isHighWaterSensorDry() [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] RET, EXPR isHighWaterLevel() [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L433] FCALL processEnvironment__wrappee__base() [L464] RET processEnvironment__wrappee__highWaterSensor() [L490] RET processEnvironment__wrappee__methaneQuery() [L400] RET processEnvironment() [L406] CALL __utac_acc__Specification2_spec__2() [L177] int tmp ; [L178] int tmp___0 ; [L182] CALL, EXPR isMethaneLevelCritical() [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] RET, EXPR isMethaneLevelCritical() [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 [L406] RET __utac_acc__Specification2_spec__2() [L370] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:02:33,910 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)