./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product64.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 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:48:41,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:48:42,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 02:48:42,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:48:42,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:48:42,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:48:42,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:48:42,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:48:42,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:48:42,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:48:42,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:48:42,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:48:42,089 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:48:42,089 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:48:42,090 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:48:42,091 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:48:42,091 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:48:42,092 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:48:42,092 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:48:42,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:48:42,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:48:42,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:48:42,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:48:42,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:48:42,097 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:48:42,097 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:48:42,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:48:42,098 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:48:42,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:48:42,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:48:42,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:48:42,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:48:42,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:48:42,102 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:48:42,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59d05b45c2855b02eb92cf6428285b3e4820a09d46d6a6d0a0748347de3adbb6 [2024-11-23 02:48:42,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:48:42,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:48:42,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:48:42,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:48:42,371 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:48:42,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2024-11-23 02:48:43,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:48:43,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:48:43,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product64.cil.c [2024-11-23 02:48:43,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181968cf0/b1d1479610454facb772d85e5c6b408a/FLAGe49db8216 [2024-11-23 02:48:43,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181968cf0/b1d1479610454facb772d85e5c6b408a [2024-11-23 02:48:43,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:48:43,932 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:48:43,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:48:43,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:48:43,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:48:43,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:43" (1/1) ... [2024-11-23 02:48:43,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16294758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:43, skipping insertion in model container [2024-11-23 02:48:43,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:43" (1/1) ... [2024-11-23 02:48:43,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:48:44,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:48:44,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:48:44,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] [2024-11-23 02:48:44,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] [2024-11-23 02:48:44,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] [2024-11-23 02:48:44,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:48:44,371 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:48:44,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44 WrapperNode [2024-11-23 02:48:44,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:48:44,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:48:44,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:48:44,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:48:44,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,469 INFO L138 Inliner]: procedures = 60, calls = 109, calls flagged for inlining = 62, calls inlined = 180, statements flattened = 1229 [2024-11-23 02:48:44,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:48:44,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:48:44,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:48:44,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:48:44,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,527 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]. [2024-11-23 02:48:44,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:48:44,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:48:44,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:48:44,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:48:44,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (1/1) ... [2024-11-23 02:48:44,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:48:44,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:48:44,617 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) [2024-11-23 02:48:44,620 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 [2024-11-23 02:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:48:44,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:48:44,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:48:44,721 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:48:44,724 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:48:45,334 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-11-23 02:48:45,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:48:45,358 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:48:45,360 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 02:48:45,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:45 BoogieIcfgContainer [2024-11-23 02:48:45,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:48:45,361 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:48:45,361 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:48:45,364 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:48:45,365 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:45,365 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:48:43" (1/3) ... [2024-11-23 02:48:45,366 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41df4657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:48:45, skipping insertion in model container [2024-11-23 02:48:45,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:45,367 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:44" (2/3) ... [2024-11-23 02:48:45,368 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41df4657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:48:45, skipping insertion in model container [2024-11-23 02:48:45,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:45,368 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:45" (3/3) ... [2024-11-23 02:48:45,370 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product64.cil.c [2024-11-23 02:48:45,419 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:48:45,421 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:48:45,421 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:48:45,421 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:48:45,421 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:48:45,421 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:48:45,421 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:48:45,422 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:48:45,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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) [2024-11-23 02:48:45,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2024-11-23 02:48:45,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:45,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:45,472 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:45,473 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:45,473 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:48:45,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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) [2024-11-23 02:48:45,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 217 [2024-11-23 02:48:45,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:45,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:45,485 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:45,485 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:45,489 INFO L745 eck$LassoCheckResult]: Stem: 195#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 206#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 303#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; 104#valid_product_returnLabel#1true main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 139#L671true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 82#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; 125#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 18#L377-2true [2024-11-23 02:48:45,489 INFO L747 eck$LassoCheckResult]: Loop: 18#L377-2true assume !false; 176#L378true assume test_~splverifierCounter~0#1 < 4; 126#L379true havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 225#L387true assume !(0 != test_~tmp~6#1); 289#L387-2true havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 149#L397true assume !(0 != test_~tmp___0~2#1); 179#L397-2true havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 16#L407true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 132#L415true assume !(0 != test_~tmp___1~0#1); 165#L415-2true assume { :begin_inline_timeShift } true; 23#L108true assume !(0 != ~pumpRunning~0); 283#L108-2true assume !(0 != ~systemActive~0); 71#L115-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 324#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 96#L462true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 312#L462-1true havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 240#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 18#L377-2true [2024-11-23 02:48:45,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:45,494 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-23 02:48:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:45,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708386172] [2024-11-23 02:48:45,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:45,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:45,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:45,629 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:45,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:45,632 INFO L85 PathProgramCache]: Analyzing trace with hash 821872921, now seen corresponding path program 1 times [2024-11-23 02:48:45,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:45,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532797900] [2024-11-23 02:48:45,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:45,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:45,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:45,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:45,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:45,651 INFO L85 PathProgramCache]: Analyzing trace with hash 85931344, now seen corresponding path program 1 times [2024-11-23 02:48:45,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:45,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602536849] [2024-11-23 02:48:45,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:45,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:48:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:48:45,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:48:45,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602536849] [2024-11-23 02:48:45,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602536849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:48:45,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:48:45,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 02:48:45,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698045939] [2024-11-23 02:48:45,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:48:45,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:48:45,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 02:48:45,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 02:48:45,938 INFO L87 Difference]: Start difference. First operand has 330 states, 329 states have (on average 1.3525835866261398) internal successors, (445), 329 states have internal predecessors, (445), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-23 02:48:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:48:46,080 INFO L93 Difference]: Finished difference Result 706 states and 937 transitions. [2024-11-23 02:48:46,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 706 states and 937 transitions. [2024-11-23 02:48:46,092 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 465 [2024-11-23 02:48:46,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 706 states to 676 states and 907 transitions. [2024-11-23 02:48:46,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 676 [2024-11-23 02:48:46,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 676 [2024-11-23 02:48:46,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 676 states and 907 transitions. [2024-11-23 02:48:46,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:48:46,111 INFO L218 hiAutomatonCegarLoop]: Abstraction has 676 states and 907 transitions. [2024-11-23 02:48:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states and 907 transitions. [2024-11-23 02:48:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 369. [2024-11-23 02:48:46,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 369 states have (on average 1.3414634146341464) internal successors, (495), 368 states have internal predecessors, (495), 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) [2024-11-23 02:48:46,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 495 transitions. [2024-11-23 02:48:46,155 INFO L240 hiAutomatonCegarLoop]: Abstraction has 369 states and 495 transitions. [2024-11-23 02:48:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 02:48:46,159 INFO L425 stractBuchiCegarLoop]: Abstraction has 369 states and 495 transitions. [2024-11-23 02:48:46,159 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:48:46,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 369 states and 495 transitions. [2024-11-23 02:48:46,164 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 253 [2024-11-23 02:48:46,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:46,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:46,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:46,166 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] [2024-11-23 02:48:46,166 INFO L745 eck$LassoCheckResult]: Stem: 1328#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1107#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1108#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; 1246#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1247#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1214#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; 1215#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1087#L377-2 [2024-11-23 02:48:46,167 INFO L747 eck$LassoCheckResult]: Loop: 1087#L377-2 assume !false; 1088#L378 assume test_~splverifierCounter~0#1 < 4; 1269#L379 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 1270#L387 assume !(0 != test_~tmp~6#1); 1321#L387-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1290#L397 assume !(0 != test_~tmp___0~2#1); 1291#L397-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1081#L407 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1082#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1173#L415-2 assume { :begin_inline_timeShift } true; 1099#L108 assume !(0 != ~pumpRunning~0); 1100#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1360#L192 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;havoc isMethaneAlarm_~retValue_acc~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1361#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret9#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~2#1 := isMethaneAlarm_#t~ret9#1;havoc isMethaneAlarm_#t~ret9#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~2#1; 1367#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret7#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret9#1, isMethaneAlarm_~retValue_acc~2#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret7#1;havoc processEnvironment_#t~ret7#1; 1202#L196 assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1203#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1211#L192-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1192#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1193#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 1233#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 1234#L462-1 havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1350#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1087#L377-2 [2024-11-23 02:48:46,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:46,168 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-23 02:48:46,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:46,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075672890] [2024-11-23 02:48:46,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:48:46,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:46,182 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:48:46,186 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:48:46,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:46,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2003767412, now seen corresponding path program 1 times [2024-11-23 02:48:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:46,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327993015] [2024-11-23 02:48:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:48:46,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:48:46,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:48:46,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327993015] [2024-11-23 02:48:46,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327993015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:48:46,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:48:46,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:48:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337508252] [2024-11-23 02:48:46,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:48:46,224 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:48:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:48:46,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:48:46,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:48:46,224 INFO L87 Difference]: Start difference. First operand 369 states and 495 transitions. cyclomatic complexity: 129 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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) [2024-11-23 02:48:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:48:46,313 INFO L93 Difference]: Finished difference Result 375 states and 478 transitions. [2024-11-23 02:48:46,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 375 states and 478 transitions. [2024-11-23 02:48:46,315 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2024-11-23 02:48:46,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 375 states to 375 states and 478 transitions. [2024-11-23 02:48:46,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2024-11-23 02:48:46,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2024-11-23 02:48:46,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 478 transitions. [2024-11-23 02:48:46,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:48:46,320 INFO L218 hiAutomatonCegarLoop]: Abstraction has 375 states and 478 transitions. [2024-11-23 02:48:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 478 transitions. [2024-11-23 02:48:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2024-11-23 02:48:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 375 states have (on average 1.2746666666666666) internal successors, (478), 374 states have internal predecessors, (478), 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) [2024-11-23 02:48:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 478 transitions. [2024-11-23 02:48:46,338 INFO L240 hiAutomatonCegarLoop]: Abstraction has 375 states and 478 transitions. [2024-11-23 02:48:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:48:46,339 INFO L425 stractBuchiCegarLoop]: Abstraction has 375 states and 478 transitions. [2024-11-23 02:48:46,339 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:48:46,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 478 transitions. [2024-11-23 02:48:46,340 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2024-11-23 02:48:46,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:46,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:46,341 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:46,341 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, 1] [2024-11-23 02:48:46,341 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~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~ret31#1, main_~retValue_acc~10#1, main_~tmp~8#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~8#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~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; 1942#valid_product_returnLabel#1 main_#t~ret31#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret31#1;havoc main_#t~ret31#1; 1943#L671 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1915#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; 1916#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1828#L377-2 [2024-11-23 02:48:46,341 INFO L747 eck$LassoCheckResult]: Loop: 1828#L377-2 assume !false; 1829#L378 assume test_~splverifierCounter~0#1 < 4; 2009#L379 havoc test_#t~nondet20#1;test_~tmp~6#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 2159#L387 assume !(0 != test_~tmp~6#1); 2157#L387-2 havoc test_#t~nondet21#1;test_~tmp___0~2#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 2155#L397 assume !(0 != test_~tmp___0~2#1); 2153#L397-2 havoc test_#t~nondet22#1;test_~tmp___2~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 2152#L407 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet23#1;test_~tmp___1~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 2151#L415 assume !(0 != test_~tmp___1~0#1); 2002#L415-2 assume { :begin_inline_timeShift } true; 1838#L108 assume !(0 != ~pumpRunning~0); 1839#L108-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2059#L192 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1; 2058#L166-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1; 2034#L140-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1927#L568-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1928#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2060#L311-9 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1985#L311-11 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1986#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1; 1908#L144-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1910#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1964#L140-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2022#L166-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret6#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1914#L192-1 havoc processEnvironment_#t~ret7#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true; 1988#L115-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2148#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 2144#L462 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 2143#L462-1 havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2046#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1828#L377-2 [2024-11-23 02:48:46,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-23 02:48:46,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:46,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886128250] [2024-11-23 02:48:46,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:48:46,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:46,356 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 02:48:46,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:48:46,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:46,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1195413920, now seen corresponding path program 1 times [2024-11-23 02:48:46,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:46,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535010538] [2024-11-23 02:48:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:46,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:46,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:46,386 INFO L85 PathProgramCache]: Analyzing trace with hash -770443575, now seen corresponding path program 1 times [2024-11-23 02:48:46,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:46,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590076256] [2024-11-23 02:48:46,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:46,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:46,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:47,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:47,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:48:47 BoogieIcfgContainer [2024-11-23 02:48:47,165 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:48:47,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:48:47,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:48:47,166 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:48:47,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:45" (3/4) ... [2024-11-23 02:48:47,168 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 02:48:47,221 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:48:47,223 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:48:47,223 INFO L158 Benchmark]: Toolchain (without parser) took 3291.49ms. Allocated memory is still 209.7MB. Free memory was 140.8MB in the beginning and 96.6MB in the end (delta: 44.2MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,224 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:48:47,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.62ms. Allocated memory is still 209.7MB. Free memory was 140.5MB in the beginning and 118.5MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.93ms. Allocated memory is still 209.7MB. Free memory was 118.5MB in the beginning and 178.2MB in the end (delta: -59.7MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,224 INFO L158 Benchmark]: Boogie Preprocessor took 91.64ms. Allocated memory is still 209.7MB. Free memory was 178.2MB in the beginning and 172.3MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,225 INFO L158 Benchmark]: RCFGBuilder took 798.13ms. Allocated memory is still 209.7MB. Free memory was 172.3MB in the beginning and 124.1MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,225 INFO L158 Benchmark]: BuchiAutomizer took 1803.93ms. Allocated memory is still 209.7MB. Free memory was 124.1MB in the beginning and 98.7MB in the end (delta: 25.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,225 INFO L158 Benchmark]: Witness Printer took 57.90ms. Allocated memory is still 209.7MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:48:47,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.62ms. Allocated memory is still 209.7MB. Free memory was 140.5MB in the beginning and 118.5MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.93ms. Allocated memory is still 209.7MB. Free memory was 118.5MB in the beginning and 178.2MB in the end (delta: -59.7MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.64ms. Allocated memory is still 209.7MB. Free memory was 178.2MB in the beginning and 172.3MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 798.13ms. Allocated memory is still 209.7MB. Free memory was 172.3MB in the beginning and 124.1MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1803.93ms. Allocated memory is still 209.7MB. Free memory was 124.1MB in the beginning and 98.7MB in the end (delta: 25.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Witness Printer took 57.90ms. Allocated memory is still 209.7MB. Free memory was 98.7MB in the beginning and 96.6MB 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,"MinePump.i","") [87] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [363] - GenericResultAtLocation [Line: 435]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [435] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [444] - GenericResultAtLocation [Line: 483]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [483] - GenericResultAtLocation [Line: 587]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [587] - GenericResultAtLocation [Line: 684]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [684] * 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 375 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 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, 1063 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1063 mSDsluCounter, 2315 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1572 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 743 mSDtfsCounter, 85 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] 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] [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] int pumpRunning = 0; [L101] int systemActive = 1; [L445] int methAndRunningLastTime ; [L485] int waterLevel = 1; [L486] int methaneLevelCritical = 0; [L588] int cleanupTimeShifts = 4; [L854] 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] [L662] int retValue_acc ; [L663] int tmp ; [L667] FCALL select_helpers() [L668] FCALL select_features() [L669] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L669] RET, EXPR valid_product() [L669] tmp = valid_product() [L671] COND TRUE \read(tmp) [L673] FCALL setup() [L674] CALL runTest() [L655] CALL __utac_acc__Specification2_spec__1() [L450] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] RET __utac_acc__Specification2_spec__1() [L656] CALL test() [L368] int splverifierCounter ; [L369] int tmp ; [L370] int tmp___0 ; [L371] int tmp___1 ; [L372] int tmp___2 ; [L375] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L377] COND TRUE 1 [L379] COND TRUE splverifierCounter < 4 [L385] tmp = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp)) [L395] tmp___0 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___0)) [L405] tmp___2 = __VERIFIER_nondet_int() [L407] COND FALSE !(\read(tmp___2)) [L413] tmp___1 = __VERIFIER_nondet_int() [L415] COND FALSE !(\read(tmp___1)) [L424] CALL timeShift() [L108] COND FALSE !(\read(pumpRunning)) [L115] COND TRUE \read(systemActive) [L117] CALL processEnvironment() [L189] int tmp ; [L192] COND FALSE !(\read(pumpRunning)) [L207] CALL processEnvironment__wrappee__methaneQuery() [L163] int tmp ; [L166] COND FALSE !(\read(pumpRunning)) [L181] CALL processEnvironment__wrappee__highWaterSensor() [L137] int tmp ; [L140] COND TRUE ! pumpRunning [L142] CALL, EXPR isHighWaterLevel() [L303] int retValue_acc ; [L304] int tmp ; [L305] int tmp___0 ; [L309] CALL, EXPR isHighWaterSensorDry() [L565] int retValue_acc ; [L568] COND TRUE waterLevel < 2 [L569] retValue_acc = 1 [L570] return (retValue_acc); [L309] RET, EXPR isHighWaterSensorDry() [L309] tmp = isHighWaterSensorDry() [L311] COND TRUE \read(tmp) [L312] tmp___0 = 0 [L316] retValue_acc = tmp___0 [L317] return (retValue_acc); [L142] RET, EXPR isHighWaterLevel() [L142] tmp = isHighWaterLevel() [L144] COND FALSE !(\read(tmp)) [L150] FCALL processEnvironment__wrappee__base() [L181] RET processEnvironment__wrappee__highWaterSensor() [L207] RET processEnvironment__wrappee__methaneQuery() [L117] RET processEnvironment() [L123] CALL __utac_acc__Specification2_spec__2() [L455] int tmp ; [L456] int tmp___0 ; [L460] CALL, EXPR isMethaneLevelCritical() [L524] int retValue_acc ; [L527] retValue_acc = methaneLevelCritical [L528] return (retValue_acc); [L460] RET, EXPR isMethaneLevelCritical() [L460] tmp = isMethaneLevelCritical() [L462] COND FALSE !(\read(tmp)) [L478] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__2() [L424] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 02:48:47,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)