./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.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 e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:39:44,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:39:44,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:39:44,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:39:44,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:39:44,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:39:44,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:39:44,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:39:44,432 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:39:44,433 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:39:44,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:39:44,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:39:44,434 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:39:44,434 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:39:44,434 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:39:44,434 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:39:44,435 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:39:44,435 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:39:44,435 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:39:44,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:39:44,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:39:44,436 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:39:44,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:39:44,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:39:44,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:39:44,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:39:44,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:39:44,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:39:44,438 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:39:44,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:39:44,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:39:44,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:39:44,439 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:39:44,439 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:39:44,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:39:44,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:39:44,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:39:44,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:39:44,441 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:39:44,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70c7d407828df40e6ca35d99b4a3a65ee0ebef631e767452684b3cd94b17437 [2024-10-13 17:39:44,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:39:44,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:39:44,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:39:44,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:39:44,674 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:39:44,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-10-13 17:39:45,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:39:46,075 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:39:46,075 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2024-10-13 17:39:46,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aa83f453/63b668dedcc6431b8e3b54a51b51ca36/FLAG372c20b02 [2024-10-13 17:39:46,459 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aa83f453/63b668dedcc6431b8e3b54a51b51ca36 [2024-10-13 17:39:46,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:39:46,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:39:46,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:39:46,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:39:46,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:39:46,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332f0886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46, skipping insertion in model container [2024-10-13 17:39:46,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:39:46,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:39:46,734 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:39:46,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-10-13 17:39:46,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] [2024-10-13 17:39:46,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] [2024-10-13 17:39:46,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:39:46,827 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:39:46,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46 WrapperNode [2024-10-13 17:39:46,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:39:46,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:39:46,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:39:46,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:39:46,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,876 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 56, calls inlined = 86, statements flattened = 592 [2024-10-13 17:39:46,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:39:46,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:39:46,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:39:46,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:39:46,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 17:39:46,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:39:46,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:39:46,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:39:46,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:39:46,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (1/1) ... [2024-10-13 17:39:46,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:39:46,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:39:46,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:39:46,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-13 17:39:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:39:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:39:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:39:46,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:39:47,051 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:39:47,052 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:39:47,389 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-10-13 17:39:47,389 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:39:47,410 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:39:47,411 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:39:47,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:47 BoogieIcfgContainer [2024-10-13 17:39:47,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:39:47,412 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:39:47,412 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:39:47,414 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:39:47,415 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:47,415 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:39:46" (1/3) ... [2024-10-13 17:39:47,416 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a38b960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:39:47, skipping insertion in model container [2024-10-13 17:39:47,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:47,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:39:46" (2/3) ... [2024-10-13 17:39:47,416 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a38b960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:39:47, skipping insertion in model container [2024-10-13 17:39:47,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:39:47,416 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:47" (3/3) ... [2024-10-13 17:39:47,417 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2024-10-13 17:39:47,453 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:39:47,453 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:39:47,453 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:39:47,453 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:39:47,453 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:39:47,453 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:39:47,453 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:39:47,454 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:39:47,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:47,479 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2024-10-13 17:39:47,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:47,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:47,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,484 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:39:47,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:47,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2024-10-13 17:39:47,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:47,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:47,491 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,491 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,496 INFO L745 eck$LassoCheckResult]: Stem: 35#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 31#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 146#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 122#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 46#L988true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 98#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 123#L800-2true [2024-10-13 17:39:47,497 INFO L747 eck$LassoCheckResult]: Loop: 123#L800-2true assume !false; 155#L801true assume test_~splverifierCounter~0#1 < 4; 67#L802true havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 7#L810true assume !(0 != test_~tmp~8#1); 29#L810-2true havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 33#L820true assume !(0 != test_~tmp___0~3#1); 133#L820-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 142#L830true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 70#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 140#L838-2true assume { :begin_inline_timeShift } true; 116#L576true assume !(0 != ~pumpRunning~0); 55#L576-2true assume !(0 != ~systemActive~0); 50#L583-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 165#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 9#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 171#L69-1true havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 87#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 123#L800-2true [2024-10-13 17:39:47,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-13 17:39:47,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:47,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723447687] [2024-10-13 17:39:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:47,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:47,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:47,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:47,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1941975181, now seen corresponding path program 1 times [2024-10-13 17:39:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77319136] [2024-10-13 17:39:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:47,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:47,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77319136] [2024-10-13 17:39:47,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77319136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:47,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:47,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:39:47,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292264487] [2024-10-13 17:39:47,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:47,723 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:47,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:39:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:39:47,762 INFO L87 Difference]: Start difference. First operand has 176 states, 175 states have (on average 1.3714285714285714) internal successors, (240), 175 states have internal predecessors, (240), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:47,816 INFO L93 Difference]: Finished difference Result 331 states and 441 transitions. [2024-10-13 17:39:47,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331 states and 441 transitions. [2024-10-13 17:39:47,822 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 216 [2024-10-13 17:39:47,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331 states to 311 states and 420 transitions. [2024-10-13 17:39:47,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 311 [2024-10-13 17:39:47,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 311 [2024-10-13 17:39:47,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 311 states and 420 transitions. [2024-10-13 17:39:47,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:47,830 INFO L218 hiAutomatonCegarLoop]: Abstraction has 311 states and 420 transitions. [2024-10-13 17:39:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states and 420 transitions. [2024-10-13 17:39:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 308. [2024-10-13 17:39:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.3506493506493507) internal successors, (416), 307 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2024-10-13 17:39:47,861 INFO L240 hiAutomatonCegarLoop]: Abstraction has 308 states and 416 transitions. [2024-10-13 17:39:47,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:39:47,869 INFO L425 stractBuchiCegarLoop]: Abstraction has 308 states and 416 transitions. [2024-10-13 17:39:47,869 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:39:47,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 416 transitions. [2024-10-13 17:39:47,874 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2024-10-13 17:39:47,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:47,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:47,875 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,875 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:47,875 INFO L745 eck$LassoCheckResult]: Stem: 566#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 567#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 560#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 561#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 666#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 584#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 585#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 642#L800-2 [2024-10-13 17:39:47,875 INFO L747 eck$LassoCheckResult]: Loop: 642#L800-2 assume !false; 667#L801 assume test_~splverifierCounter~0#1 < 4; 716#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 746#L810 assume !(0 != test_~tmp~8#1); 740#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 737#L820 assume !(0 != test_~tmp___0~3#1); 677#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 678#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 729#L838 assume !(0 != test_~tmp___1~1#1); 620#L838-2 assume { :begin_inline_timeShift } true; 658#L576 assume !(0 != ~pumpRunning~0); 596#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 597#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 739#L608-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 516#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 571#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 589#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 590#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 719#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 718#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 717#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 642#L800-2 [2024-10-13 17:39:47,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-13 17:39:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:47,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544853377] [2024-10-13 17:39:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:47,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:47,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:47,903 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:47,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2056880265, now seen corresponding path program 1 times [2024-10-13 17:39:47,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:47,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541468564] [2024-10-13 17:39:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:47,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:47,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541468564] [2024-10-13 17:39:47,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541468564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:47,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:47,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:39:47,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388487123] [2024-10-13 17:39:47,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:47,944 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:47,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:47,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:39:47,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:39:47,946 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:48,018 INFO L93 Difference]: Finished difference Result 432 states and 563 transitions. [2024-10-13 17:39:48,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 432 states and 563 transitions. [2024-10-13 17:39:48,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-10-13 17:39:48,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 432 states to 432 states and 563 transitions. [2024-10-13 17:39:48,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 432 [2024-10-13 17:39:48,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 432 [2024-10-13 17:39:48,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 432 states and 563 transitions. [2024-10-13 17:39:48,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:48,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-10-13 17:39:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states and 563 transitions. [2024-10-13 17:39:48,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-10-13 17:39:48,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 432 states have (on average 1.3032407407407407) internal successors, (563), 431 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2024-10-13 17:39:48,049 INFO L240 hiAutomatonCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-10-13 17:39:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:39:48,050 INFO L425 stractBuchiCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-10-13 17:39:48,051 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:39:48,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 432 states and 563 transitions. [2024-10-13 17:39:48,053 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2024-10-13 17:39:48,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:48,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:48,054 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,054 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] [2024-10-13 17:39:48,054 INFO L745 eck$LassoCheckResult]: Stem: 1314#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1315#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1307#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1308#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1426#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1335#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1336#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1400#L800-2 [2024-10-13 17:39:48,054 INFO L747 eck$LassoCheckResult]: Loop: 1400#L800-2 assume !false; 1428#L801 assume test_~splverifierCounter~0#1 < 4; 1565#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1563#L810 assume !(0 != test_~tmp~8#1); 1561#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1559#L820 assume !(0 != test_~tmp___0~3#1); 1557#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1445#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1446#L838 assume !(0 != test_~tmp___1~1#1); 1370#L838-2 assume { :begin_inline_timeShift } true; 1444#L576 assume !(0 != ~pumpRunning~0); 1349#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1350#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1434#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1435#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1548#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 1547#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1455#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1456#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 1536#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1537#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1570#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1569#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1568#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1474#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 1475#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 1478#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1479#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1400#L800-2 [2024-10-13 17:39:48,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-10-13 17:39:48,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657755905] [2024-10-13 17:39:48,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1587441165, now seen corresponding path program 1 times [2024-10-13 17:39:48,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939769898] [2024-10-13 17:39:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:48,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:48,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939769898] [2024-10-13 17:39:48,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939769898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:48,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:48,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:39:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468940654] [2024-10-13 17:39:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:48,143 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:48,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:39:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:39:48,144 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. cyclomatic complexity: 134 Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:48,215 INFO L93 Difference]: Finished difference Result 456 states and 587 transitions. [2024-10-13 17:39:48,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 456 states and 587 transitions. [2024-10-13 17:39:48,218 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-10-13 17:39:48,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 456 states to 456 states and 587 transitions. [2024-10-13 17:39:48,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 456 [2024-10-13 17:39:48,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 456 [2024-10-13 17:39:48,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 456 states and 587 transitions. [2024-10-13 17:39:48,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:48,222 INFO L218 hiAutomatonCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-10-13 17:39:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states and 587 transitions. [2024-10-13 17:39:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-10-13 17:39:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 456 states have (on average 1.287280701754386) internal successors, (587), 455 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 587 transitions. [2024-10-13 17:39:48,231 INFO L240 hiAutomatonCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-10-13 17:39:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:39:48,232 INFO L425 stractBuchiCegarLoop]: Abstraction has 456 states and 587 transitions. [2024-10-13 17:39:48,232 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:39:48,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 456 states and 587 transitions. [2024-10-13 17:39:48,234 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 323 [2024-10-13 17:39:48,234 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:48,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:48,234 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,235 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] [2024-10-13 17:39:48,235 INFO L745 eck$LassoCheckResult]: Stem: 2210#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 2203#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2204#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2319#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2230#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 2231#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2284#L800-2 [2024-10-13 17:39:48,235 INFO L747 eck$LassoCheckResult]: Loop: 2284#L800-2 assume !false; 2388#L801 assume test_~splverifierCounter~0#1 < 4; 2260#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2261#L810 assume !(0 != test_~tmp~8#1); 2199#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 2200#L820 assume !(0 != test_~tmp___0~3#1); 2328#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2329#L830 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~1#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2212#L838 assume !(0 != test_~tmp___1~1#1); 2213#L838-2 assume { :begin_inline_timeShift } true; 2314#L576 assume !(0 != ~pumpRunning~0); 2315#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2325#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2326#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2275#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2276#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2386#L736-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2352#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 2350#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 2351#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2370#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2494#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2493#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2492#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2491#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 2397#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 2398#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2283#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2284#L800-2 [2024-10-13 17:39:48,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-10-13 17:39:48,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675392792] [2024-10-13 17:39:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,256 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,257 INFO L85 PathProgramCache]: Analyzing trace with hash 576323915, now seen corresponding path program 1 times [2024-10-13 17:39:48,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551667178] [2024-10-13 17:39:48,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:48,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:48,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551667178] [2024-10-13 17:39:48,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551667178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:48,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:48,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:39:48,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831481646] [2024-10-13 17:39:48,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:48,331 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:39:48,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:39:48,332 INFO L87 Difference]: Start difference. First operand 456 states and 587 transitions. cyclomatic complexity: 134 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:48,432 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2024-10-13 17:39:48,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 623 transitions. [2024-10-13 17:39:48,436 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:39:48,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 492 states and 623 transitions. [2024-10-13 17:39:48,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 492 [2024-10-13 17:39:48,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 492 [2024-10-13 17:39:48,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 623 transitions. [2024-10-13 17:39:48,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:48,440 INFO L218 hiAutomatonCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-10-13 17:39:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 623 transitions. [2024-10-13 17:39:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-10-13 17:39:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.266260162601626) internal successors, (623), 491 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 623 transitions. [2024-10-13 17:39:48,450 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-10-13 17:39:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:39:48,454 INFO L425 stractBuchiCegarLoop]: Abstraction has 492 states and 623 transitions. [2024-10-13 17:39:48,454 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-13 17:39:48,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 623 transitions. [2024-10-13 17:39:48,457 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2024-10-13 17:39:48,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:48,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:48,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,460 INFO L745 eck$LassoCheckResult]: Stem: 3164#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 3157#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3158#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3276#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3185#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 3186#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3242#L800-2 [2024-10-13 17:39:48,460 INFO L747 eck$LassoCheckResult]: Loop: 3242#L800-2 assume !false; 3314#L801 assume test_~splverifierCounter~0#1 < 4; 3315#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3118#L810 assume !(0 != test_~tmp~8#1); 3120#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3159#L820 assume !(0 != test_~tmp___0~3#1); 3161#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 3290#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3220#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3167#L838-2 assume { :begin_inline_timeShift } true; 3300#L576 assume !(0 != ~pumpRunning~0); 3199#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3200#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3286#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3287#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3187#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3126#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3127#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3339#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 3340#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3177#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3178#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3446#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 3444#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 3442#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 3423#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0#1; 3421#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3241#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3242#L800-2 [2024-10-13 17:39:48,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-10-13 17:39:48,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641794506] [2024-10-13 17:39:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,479 INFO L85 PathProgramCache]: Analyzing trace with hash -747226467, now seen corresponding path program 1 times [2024-10-13 17:39:48,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264666697] [2024-10-13 17:39:48,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1998208415, now seen corresponding path program 1 times [2024-10-13 17:39:48,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059891062] [2024-10-13 17:39:48,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:48,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:48,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059891062] [2024-10-13 17:39:48,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059891062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:48,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:48,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:39:48,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6244389] [2024-10-13 17:39:48,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:39:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:39:48,707 INFO L87 Difference]: Start difference. First operand 492 states and 623 transitions. cyclomatic complexity: 134 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:48,772 INFO L93 Difference]: Finished difference Result 977 states and 1223 transitions. [2024-10-13 17:39:48,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 977 states and 1223 transitions. [2024-10-13 17:39:48,776 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-10-13 17:39:48,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 977 states to 977 states and 1223 transitions. [2024-10-13 17:39:48,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 977 [2024-10-13 17:39:48,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 977 [2024-10-13 17:39:48,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 977 states and 1223 transitions. [2024-10-13 17:39:48,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:48,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 977 states and 1223 transitions. [2024-10-13 17:39:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states and 1223 transitions. [2024-10-13 17:39:48,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-10-13 17:39:48,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2517911975435005) internal successors, (1223), 976 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1223 transitions. [2024-10-13 17:39:48,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1223 transitions. [2024-10-13 17:39:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:39:48,794 INFO L425 stractBuchiCegarLoop]: Abstraction has 977 states and 1223 transitions. [2024-10-13 17:39:48,794 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-13 17:39:48,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1223 transitions. [2024-10-13 17:39:48,797 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-10-13 17:39:48,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:48,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:48,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,799 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] [2024-10-13 17:39:48,799 INFO L745 eck$LassoCheckResult]: Stem: 4645#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 4646#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 4638#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4639#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 4759#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 4667#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 4668#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4733#L800-2 [2024-10-13 17:39:48,799 INFO L747 eck$LassoCheckResult]: Loop: 4733#L800-2 assume !false; 5077#L801 assume test_~splverifierCounter~0#1 < 4; 5046#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 5044#L810 assume !(0 != test_~tmp~8#1); 5042#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 5040#L820 assume !(0 != test_~tmp___0~3#1); 4725#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 4767#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 4705#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 4648#L838-2 assume { :begin_inline_timeShift } true; 4752#L576 assume !(0 != ~pumpRunning~0); 4680#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 4681#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 4764#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 4766#L177-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 5047#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 5041#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4609#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 4806#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 5002#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5003#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 5111#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5109#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 4674#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 4675#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 5104#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 5103#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 5097#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 5092#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5087#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 4733#L800-2 [2024-10-13 17:39:48,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-10-13 17:39:48,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099945525] [2024-10-13 17:39:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1844970320, now seen corresponding path program 1 times [2024-10-13 17:39:48,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217356915] [2024-10-13 17:39:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:39:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:39:48,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:39:48,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217356915] [2024-10-13 17:39:48,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217356915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:39:48,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:39:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 17:39:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641252961] [2024-10-13 17:39:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:39:48,853 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:39:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:39:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 17:39:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 17:39:48,853 INFO L87 Difference]: Start difference. First operand 977 states and 1223 transitions. cyclomatic complexity: 251 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:39:48,914 INFO L93 Difference]: Finished difference Result 977 states and 1199 transitions. [2024-10-13 17:39:48,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 977 states and 1199 transitions. [2024-10-13 17:39:48,918 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-10-13 17:39:48,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 977 states to 977 states and 1199 transitions. [2024-10-13 17:39:48,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 977 [2024-10-13 17:39:48,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 977 [2024-10-13 17:39:48,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 977 states and 1199 transitions. [2024-10-13 17:39:48,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:39:48,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-10-13 17:39:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states and 1199 transitions. [2024-10-13 17:39:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-10-13 17:39:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2272262026612077) internal successors, (1199), 976 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:39:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1199 transitions. [2024-10-13 17:39:48,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-10-13 17:39:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:39:48,935 INFO L425 stractBuchiCegarLoop]: Abstraction has 977 states and 1199 transitions. [2024-10-13 17:39:48,935 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-13 17:39:48,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1199 transitions. [2024-10-13 17:39:48,938 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2024-10-13 17:39:48,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:39:48,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:39:48,939 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:39:48,939 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] [2024-10-13 17:39:48,939 INFO L745 eck$LassoCheckResult]: Stem: 6605#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 6606#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~9#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 6599#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6600#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 6715#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 6626#L988 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 6627#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6681#L800-2 [2024-10-13 17:39:48,939 INFO L747 eck$LassoCheckResult]: Loop: 6681#L800-2 assume !false; 6717#L801 assume test_~splverifierCounter~0#1 < 4; 6654#L802 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 6562#L810 assume !(0 != test_~tmp~8#1); 6564#L810-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 6596#L820 assume !(0 != test_~tmp___0~3#1); 6602#L820-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 7057#L830 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6989#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 7055#L838-2 assume { :begin_inline_timeShift } true; 7053#L576 assume !(0 != ~pumpRunning~0); 6813#L576-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 6979#L634 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 6809#L608-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 6974#L177-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 6972#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 6968#L736-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 6967#L736-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 6926#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret35#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret35#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1; 6896#L612-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6619#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 6610#L608-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret35#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6611#L634-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 6633#L583-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 6634#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0#1 := __utac_acc__Specification3_spec__1_#t~ret4#1;havoc __utac_acc__Specification3_spec__1_#t~ret4#1; 6748#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6679#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret5#1;havoc __utac_acc__Specification3_spec__1_#t~ret5#1; 6584#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 6586#L69-1 havoc __utac_acc__Specification3_spec__1_#t~ret4#1, __utac_acc__Specification3_spec__1_#t~ret5#1, __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_~tmp~0#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 6680#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 6681#L800-2 [2024-10-13 17:39:48,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 7 times [2024-10-13 17:39:48,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538695083] [2024-10-13 17:39:48,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,952 INFO L85 PathProgramCache]: Analyzing trace with hash -823901966, now seen corresponding path program 1 times [2024-10-13 17:39:48,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057799123] [2024-10-13 17:39:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:48,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:39:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -426711114, now seen corresponding path program 1 times [2024-10-13 17:39:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:39:48,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526392478] [2024-10-13 17:39:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:39:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:39:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:48,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:39:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:49,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:39:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:39:49,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:39:49 BoogieIcfgContainer [2024-10-13 17:39:49,629 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:39:49,629 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:39:49,629 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:39:49,629 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:39:49,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:39:47" (3/4) ... [2024-10-13 17:39:49,630 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:39:49,681 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:39:49,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:39:49,682 INFO L158 Benchmark]: Toolchain (without parser) took 3220.05ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 125.0MB in the beginning and 90.7MB in the end (delta: 34.3MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,682 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:39:49,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.03ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 104.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.30ms. Allocated memory is still 180.4MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,683 INFO L158 Benchmark]: Boogie Preprocessor took 46.74ms. Allocated memory is still 180.4MB. Free memory was 99.8MB in the beginning and 96.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,683 INFO L158 Benchmark]: RCFGBuilder took 482.56ms. Allocated memory is still 180.4MB. Free memory was 96.9MB in the beginning and 68.4MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,683 INFO L158 Benchmark]: BuchiAutomizer took 2216.99ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 67.5MB in the beginning and 93.9MB in the end (delta: -26.3MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,683 INFO L158 Benchmark]: Witness Printer took 52.47ms. Allocated memory is still 272.6MB. Free memory was 93.9MB in the beginning and 90.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:39:49,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.03ms. Allocated memory is still 180.4MB. Free memory was 125.0MB in the beginning and 104.0MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.30ms. Allocated memory is still 180.4MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.74ms. Allocated memory is still 180.4MB. Free memory was 99.8MB in the beginning and 96.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.56ms. Allocated memory is still 180.4MB. Free memory was 96.9MB in the beginning and 68.4MB in the end (delta: 28.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2216.99ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 67.5MB in the beginning and 93.9MB in the end (delta: -26.3MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Witness Printer took 52.47ms. Allocated memory is still 272.6MB. Free memory was 93.9MB in the beginning and 90.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 196]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [196] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [562] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [788] - GenericResultAtLocation [Line: 858]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [858] - GenericResultAtLocation [Line: 867]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [867] - GenericResultAtLocation [Line: 905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 977 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 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, 539 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 539 mSDsluCounter, 3665 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2322 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 357 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 1343 mSDtfsCounter, 357 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI5 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: 800]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L832] CALL startSystem() [L784] systemActive = 1 [L832] RET startSystem() [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 800]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L906] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L979] int retValue_acc ; [L980] int tmp ; [L984] FCALL select_helpers() [L985] FCALL select_features() [L986] CALL, EXPR valid_product() [L897] int retValue_acc ; [L900] retValue_acc = 1 [L901] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L986] RET, EXPR valid_product() [L986] tmp = valid_product() [L988] COND TRUE \read(tmp) [L990] FCALL setup() [L991] CALL runTest() [L973] CALL test() [L791] int splverifierCounter ; [L792] int tmp ; [L793] int tmp___0 ; [L794] int tmp___1 ; [L795] int tmp___2 ; [L798] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L800] COND TRUE 1 [L802] COND TRUE splverifierCounter < 4 [L808] tmp = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp)) [L818] tmp___0 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___0)) [L828] tmp___2 = __VERIFIER_nondet_int() [L830] COND TRUE \read(tmp___2) [L832] CALL startSystem() [L784] systemActive = 1 [L832] RET startSystem() [L847] CALL timeShift() [L576] COND FALSE !(\read(pumpRunning)) [L583] COND TRUE \read(systemActive) [L585] CALL processEnvironment() [L631] int tmp ; [L634] COND FALSE !(\read(pumpRunning)) [L649] CALL processEnvironment__wrappee__highWaterSensor() [L605] int tmp ; [L608] COND TRUE ! pumpRunning [L610] CALL, EXPR isHighWaterLevel() [L728] int retValue_acc ; [L729] int tmp ; [L730] int tmp___0 ; [L734] CALL, EXPR isHighWaterSensorDry() [L174] int retValue_acc ; [L177] COND TRUE waterLevel < 2 [L178] retValue_acc = 1 [L179] return (retValue_acc); [L734] RET, EXPR isHighWaterSensorDry() [L734] tmp = isHighWaterSensorDry() [L736] COND TRUE \read(tmp) [L737] tmp___0 = 0 [L741] retValue_acc = tmp___0 [L742] return (retValue_acc); [L610] RET, EXPR isHighWaterLevel() [L610] tmp = isHighWaterLevel() [L612] COND FALSE !(\read(tmp)) [L618] FCALL processEnvironment__wrappee__base() [L649] RET processEnvironment__wrappee__highWaterSensor() [L585] RET processEnvironment() [L591] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L61] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) [L591] RET __utac_acc__Specification3_spec__1() [L847] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:39:49,717 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)