./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product09.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 ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:03:19,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:03:19,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:03:19,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:03:19,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:03:19,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:03:19,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:03:19,354 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:03:19,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:03:19,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:03:19,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:03:19,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:03:19,358 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:03:19,358 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:03:19,359 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:03:19,360 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:03:19,361 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:03:19,361 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:03:19,363 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:03:19,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:03:19,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:03:19,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:03:19,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:03:19,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:03:19,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:03:19,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:03:19,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:03:19,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:03:19,366 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:03:19,366 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:03:19,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:03:19,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:03:19,367 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:03:19,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:03:19,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:03:19,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:03:19,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:03:19,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:03:19,370 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:03:19,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd5e4db60536079e2f1ed21b8808db42225a5df1dde0ff11f7a6872cf3ec06e [2024-11-09 16:03:19,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:03:19,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:03:19,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:03:19,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:03:19,651 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:03:19,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2024-11-09 16:03:21,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:03:21,381 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:03:21,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product09.cil.c [2024-11-09 16:03:21,394 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a6b2746/3594e847798d40678db43ee383b911b3/FLAGd95292d94 [2024-11-09 16:03:21,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10a6b2746/3594e847798d40678db43ee383b911b3 [2024-11-09 16:03:21,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:03:21,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:03:21,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:03:21,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:03:21,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:03:21,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316a6d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21, skipping insertion in model container [2024-11-09 16:03:21,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:03:21,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:03:21,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:03:21,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-09 16:03:21,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-11-09 16:03:21,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] [2024-11-09 16:03:21,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [452] [2024-11-09 16:03:21,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] [2024-11-09 16:03:21,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [604] [2024-11-09 16:03:21,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [732] [2024-11-09 16:03:21,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] [2024-11-09 16:03:21,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:03:21,919 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:03:21,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21 WrapperNode [2024-11-09 16:03:21,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:03:21,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:03:21,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:03:21,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:03:21,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,973 INFO L138 Inliner]: procedures = 50, calls = 91, calls flagged for inlining = 44, calls inlined = 35, statements flattened = 228 [2024-11-09 16:03:21,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:03:21,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:03:21,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:03:21,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:03:21,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:21,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,014 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 16:03:22,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:03:22,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:03:22,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:03:22,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:03:22,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (1/1) ... [2024-11-09 16:03:22,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:03:22,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:03:22,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:03:22,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 16:03:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:03:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:03:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:03:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:03:22,258 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:03:22,264 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:03:22,548 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-09 16:03:22,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:03:22,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:03:22,563 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:03:22,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:03:22 BoogieIcfgContainer [2024-11-09 16:03:22,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:03:22,565 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:03:22,565 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:03:22,569 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:03:22,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:03:22,570 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:03:21" (1/3) ... [2024-11-09 16:03:22,571 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@776f0ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:03:22, skipping insertion in model container [2024-11-09 16:03:22,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:03:22,572 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:03:21" (2/3) ... [2024-11-09 16:03:22,572 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@776f0ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:03:22, skipping insertion in model container [2024-11-09 16:03:22,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:03:22,572 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:03:22" (3/3) ... [2024-11-09 16:03:22,574 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product09.cil.c [2024-11-09 16:03:22,627 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:03:22,627 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:03:22,627 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:03:22,627 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:03:22,627 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:03:22,627 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:03:22,627 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:03:22,628 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:03:22,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:22,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2024-11-09 16:03:22,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:22,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:22,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:22,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:22,656 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:03:22,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:22,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 48 [2024-11-09 16:03:22,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:22,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:22,662 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:22,662 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:22,667 INFO L745 eck$LassoCheckResult]: Stem: 34#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 46#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 42#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 22#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 49#L853true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 5#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 17#L550-2true [2024-11-09 16:03:22,668 INFO L747 eck$LassoCheckResult]: Loop: 17#L550-2true assume !false; 35#L551true assume test_~splverifierCounter~0#1 < 4; 48#L552true havoc test_#t~nondet34#1;test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 20#L560true assume !(0 != test_~tmp~4#1); 32#L560-2true havoc test_#t~nondet35#1;test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 45#L570true assume !(0 != test_~tmp___0~1#1); 59#L570-2true havoc test_#t~nondet36#1;test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 3#L580true assume 0 != test_~tmp___2~0#1; 75#L586-2true assume { :begin_inline_timeShift } true; 10#L615true assume !(0 != ~pumpRunning~0); 13#L615-2true assume !(0 != ~systemActive~0); 39#L622-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 72#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 31#L435true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 71#L435-1true havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 73#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 17#L550-2true [2024-11-09 16:03:22,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:22,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-09 16:03:22,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:22,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547649698] [2024-11-09 16:03:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:22,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:22,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:22,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:22,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1686804410, now seen corresponding path program 1 times [2024-11-09 16:03:22,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:22,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169865942] [2024-11-09 16:03:22,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:22,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:22,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:22,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:22,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash -331385334, now seen corresponding path program 1 times [2024-11-09 16:03:22,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253735383] [2024-11-09 16:03:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:03:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:03:23,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:03:23,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253735383] [2024-11-09 16:03:23,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253735383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:03:23,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:03:23,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:03:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122591939] [2024-11-09 16:03:23,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:03:23,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:03:23,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:03:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:03:23,230 INFO L87 Difference]: Start difference. First operand has 78 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:23,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:03:23,308 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2024-11-09 16:03:23,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 88 transitions. [2024-11-09 16:03:23,313 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-09 16:03:23,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 62 states and 78 transitions. [2024-11-09 16:03:23,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-11-09 16:03:23,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2024-11-09 16:03:23,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 78 transitions. [2024-11-09 16:03:23,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:03:23,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-09 16:03:23,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 78 transitions. [2024-11-09 16:03:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-09 16:03:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 61 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:03:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2024-11-09 16:03:23,350 INFO L240 hiAutomatonCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-09 16:03:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:03:23,357 INFO L425 stractBuchiCegarLoop]: Abstraction has 62 states and 78 transitions. [2024-11-09 16:03:23,357 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:03:23,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 78 transitions. [2024-11-09 16:03:23,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 42 [2024-11-09 16:03:23,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:03:23,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:03:23,361 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:23,361 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:03:23,362 INFO L745 eck$LassoCheckResult]: Stem: 209#$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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 201#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 202#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~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 196#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 197#L853 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 171#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_#t~nondet37#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 172#L550-2 [2024-11-09 16:03:23,362 INFO L747 eck$LassoCheckResult]: Loop: 172#L550-2 assume !false; 187#L551 assume test_~splverifierCounter~0#1 < 4; 211#L552 havoc test_#t~nondet34#1;test_~tmp~4#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 192#L560 assume !(0 != test_~tmp~4#1); 194#L560-2 havoc test_#t~nondet35#1;test_~tmp___0~1#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 208#L570 assume !(0 != test_~tmp___0~1#1); 222#L570-2 havoc test_#t~nondet36#1;test_~tmp___2~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 168#L580 assume 0 != test_~tmp___2~0#1; 170#L586-2 assume { :begin_inline_timeShift } true; 177#L615 assume !(0 != ~pumpRunning~0); 178#L615-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 182#processEnvironment_returnLabel#1 assume { :end_inline_processEnvironment } true; 195#L622-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~3#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 216#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~3#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 204#L435 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3#1); 206#L435-1 havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~3#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 229#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 172#L550-2 [2024-11-09 16:03:23,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-09 16:03:23,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:23,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818662654] [2024-11-09 16:03:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:23,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:23,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash -123309085, now seen corresponding path program 1 times [2024-11-09 16:03:23,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:23,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282339649] [2024-11-09 16:03:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:23,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:23,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:03:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1054990689, now seen corresponding path program 1 times [2024-11-09 16:03:23,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:03:23,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436715679] [2024-11-09 16:03:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:03:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:03:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:23,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:03:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:24,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:03:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:03:24,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:03:24 BoogieIcfgContainer [2024-11-09 16:03:24,407 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:03:24,408 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:03:24,408 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:03:24,408 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:03:24,409 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:03:22" (3/4) ... [2024-11-09 16:03:24,410 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:03:24,454 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:03:24,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:03:24,455 INFO L158 Benchmark]: Toolchain (without parser) took 3041.36ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 101.8MB in the beginning and 158.6MB in the end (delta: -56.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,455 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory was 119.5MB in the beginning and 119.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:03:24,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.73ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 81.2MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.54ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,456 INFO L158 Benchmark]: Boogie Preprocessor took 57.37ms. Allocated memory is still 159.4MB. Free memory was 79.1MB in the beginning and 76.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,457 INFO L158 Benchmark]: RCFGBuilder took 527.62ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 76.7MB in the beginning and 188.6MB in the end (delta: -111.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,457 INFO L158 Benchmark]: BuchiAutomizer took 1842.36ms. Allocated memory is still 226.5MB. Free memory was 188.6MB in the beginning and 160.7MB in the end (delta: 27.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,458 INFO L158 Benchmark]: Witness Printer took 46.66ms. Allocated memory is still 226.5MB. Free memory was 160.7MB in the beginning and 158.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:03:24,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory was 119.5MB in the beginning and 119.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.73ms. Allocated memory is still 159.4MB. Free memory was 101.8MB in the beginning and 81.2MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.54ms. Allocated memory is still 159.4MB. Free memory was 81.2MB in the beginning and 79.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.37ms. Allocated memory is still 159.4MB. Free memory was 79.1MB in the beginning and 76.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.62ms. Allocated memory was 159.4MB in the beginning and 226.5MB in the end (delta: 67.1MB). Free memory was 76.7MB in the beginning and 188.6MB in the end (delta: -111.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1842.36ms. Allocated memory is still 226.5MB. Free memory was 188.6MB in the beginning and 160.7MB in the end (delta: 27.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 46.66ms. Allocated memory is still 226.5MB. Free memory was 160.7MB in the beginning and 158.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [424] - GenericResultAtLocation [Line: 452]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [452] - GenericResultAtLocation [Line: 537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [537] - GenericResultAtLocation [Line: 604]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [604] - GenericResultAtLocation [Line: 732]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [732] - GenericResultAtLocation [Line: 770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [770] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 62 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 83 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 550]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L771] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int retValue_acc ; [L845] int tmp ; [L849] FCALL select_helpers() [L850] FCALL select_features() [L851] CALL, EXPR valid_product() [L762] int retValue_acc ; [L765] retValue_acc = 1 [L766] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] RET, EXPR valid_product() [L851] tmp = valid_product() [L853] COND TRUE \read(tmp) [L855] FCALL setup() [L856] CALL runTest() [L838] CALL test() [L541] int splverifierCounter ; [L542] int tmp ; [L543] int tmp___0 ; [L544] int tmp___1 ; [L545] int tmp___2 ; [L548] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L550] COND TRUE 1 [L552] COND TRUE splverifierCounter < 4 [L558] tmp = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp)) [L568] tmp___0 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___0)) [L578] tmp___2 = __VERIFIER_nondet_int() [L580] COND TRUE \read(tmp___2) [L593] CALL timeShift() [L615] COND FALSE !(\read(pumpRunning)) [L622] COND TRUE \read(systemActive) [L624] FCALL processEnvironment() [L630] CALL __utac_acc__Specification4_spec__1() [L428] int tmp ; [L429] int tmp___0 ; [L433] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L433] RET, EXPR getWaterLevel() [L433] tmp = getWaterLevel() [L435] COND FALSE !(tmp == 0) [L630] RET __utac_acc__Specification4_spec__1() [L593] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 550]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L771] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int retValue_acc ; [L845] int tmp ; [L849] FCALL select_helpers() [L850] FCALL select_features() [L851] CALL, EXPR valid_product() [L762] int retValue_acc ; [L765] retValue_acc = 1 [L766] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L851] RET, EXPR valid_product() [L851] tmp = valid_product() [L853] COND TRUE \read(tmp) [L855] FCALL setup() [L856] CALL runTest() [L838] CALL test() [L541] int splverifierCounter ; [L542] int tmp ; [L543] int tmp___0 ; [L544] int tmp___1 ; [L545] int tmp___2 ; [L548] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L550] COND TRUE 1 [L552] COND TRUE splverifierCounter < 4 [L558] tmp = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp)) [L568] tmp___0 = __VERIFIER_nondet_int() [L570] COND FALSE !(\read(tmp___0)) [L578] tmp___2 = __VERIFIER_nondet_int() [L580] COND TRUE \read(tmp___2) [L593] CALL timeShift() [L615] COND FALSE !(\read(pumpRunning)) [L622] COND TRUE \read(systemActive) [L624] FCALL processEnvironment() [L630] CALL __utac_acc__Specification4_spec__1() [L428] int tmp ; [L429] int tmp___0 ; [L433] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L433] RET, EXPR getWaterLevel() [L433] tmp = getWaterLevel() [L435] COND FALSE !(tmp == 0) [L630] RET __utac_acc__Specification4_spec__1() [L593] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:03:24,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)