./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product41.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 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:39:51,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:39:51,975 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:39:51,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:39:51,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:39:52,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:39:52,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:39:52,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:39:52,004 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:39:52,004 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:39:52,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:39:52,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:39:52,005 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:39:52,005 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:39:52,005 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:39:52,006 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:39:52,006 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:39:52,006 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:39:52,006 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:39:52,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:39:52,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:39:52,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:39:52,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:39:52,010 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:39:52,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:39:52,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:39:52,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:39:52,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:39:52,011 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:39:52,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:39:52,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:39:52,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:39:52,013 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:39:52,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:39:52,014 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:39:52,014 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:39:52,015 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:39:52,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:39:52,015 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:39:52,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2024-11-12 21:39:52,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:39:52,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:39:52,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:39:52,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:39:52,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:39:52,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2024-11-12 21:39:53,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:39:54,192 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:39:54,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2024-11-12 21:39:54,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886af10ef/6f4fc7f062ad4a3d8791a46556424bf7/FLAGc8bf52e2a [2024-11-12 21:39:54,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/886af10ef/6f4fc7f062ad4a3d8791a46556424bf7 [2024-11-12 21:39:54,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:39:54,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:39:54,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:39:54,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:39:54,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:39:54,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614276a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54, skipping insertion in model container [2024-11-12 21:39:54,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:39:54,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:39:54,639 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:39:54,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-11-12 21:39:54,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2024-11-12 21:39:54,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] [2024-11-12 21:39:54,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] [2024-11-12 21:39:54,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2024-11-12 21:39:54,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] [2024-11-12 21:39:54,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] [2024-11-12 21:39:54,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2024-11-12 21:39:54,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:39:54,745 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:39:54,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54 WrapperNode [2024-11-12 21:39:54,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:39:54,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:39:54,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:39:54,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:39:54,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,808 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 50, calls inlined = 62, statements flattened = 435 [2024-11-12 21:39:54,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:39:54,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:39:54,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:39:54,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:39:54,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,853 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]. [2024-11-12 21:39:54,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:39:54,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:39:54,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:39:54,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:39:54,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (1/1) ... [2024-11-12 21:39:54,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:39:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:54,937 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) [2024-11-12 21:39:54,940 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 [2024-11-12 21:39:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:39:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:39:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:39:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:39:55,076 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:39:55,078 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:39:55,419 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-12 21:39:55,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:39:55,439 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:39:55,439 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 21:39:55,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:39:55 BoogieIcfgContainer [2024-11-12 21:39:55,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:39:55,441 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:39:55,441 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:39:55,447 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:39:55,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:39:55,448 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:39:54" (1/3) ... [2024-11-12 21:39:55,449 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@188f26aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:39:55, skipping insertion in model container [2024-11-12 21:39:55,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:39:55,449 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:39:54" (2/3) ... [2024-11-12 21:39:55,449 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@188f26aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:39:55, skipping insertion in model container [2024-11-12 21:39:55,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:39:55,449 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:39:55" (3/3) ... [2024-11-12 21:39:55,451 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2024-11-12 21:39:55,500 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:39:55,500 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:39:55,501 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:39:55,501 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:39:55,501 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:39:55,501 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:39:55,501 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:39:55,501 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:39:55,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.368) internal successors, (171), 125 states have internal predecessors, (171), 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) [2024-11-12 21:39:55,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2024-11-12 21:39:55,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:55,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:55,537 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:55,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:55,537 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:39:55,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.368) internal successors, (171), 125 states have internal predecessors, (171), 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) [2024-11-12 21:39:55,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2024-11-12 21:39:55,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:55,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:55,551 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:55,551 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:55,557 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:55,558 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:55,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:55,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-12 21:39:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219803417] [2024-11-12 21:39:55,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:55,680 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:55,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:55,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash -325980586, now seen corresponding path program 1 times [2024-11-12 21:39:55,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:55,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456728803] [2024-11-12 21:39:55,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:55,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:55,739 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:55,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:55,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1029438490, now seen corresponding path program 1 times [2024-11-12 21:39:55,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:55,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473523167] [2024-11-12 21:39:55,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:55,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:39:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473523167] [2024-11-12 21:39:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473523167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:39:56,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642087058] [2024-11-12 21:39:56,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:39:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:56,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:39:56,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:39:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:39:56,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:39:56,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:39:56,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642087058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:39:56,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:39:56,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-12 21:39:56,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191764005] [2024-11-12 21:39:56,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:39:56,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:39:56,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 21:39:56,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 21:39:56,331 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.368) internal successors, (171), 125 states have internal predecessors, (171), 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 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 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) [2024-11-12 21:39:56,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:39:56,449 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2024-11-12 21:39:56,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 154 transitions. [2024-11-12 21:39:56,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2024-11-12 21:39:56,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 110 states and 144 transitions. [2024-11-12 21:39:56,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 110 [2024-11-12 21:39:56,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 110 [2024-11-12 21:39:56,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 110 states and 144 transitions. [2024-11-12 21:39:56,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:39:56,466 INFO L218 hiAutomatonCegarLoop]: Abstraction has 110 states and 144 transitions. [2024-11-12 21:39:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states and 144 transitions. [2024-11-12 21:39:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-12 21:39:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 110 states have (on average 1.309090909090909) internal successors, (144), 109 states have internal predecessors, (144), 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) [2024-11-12 21:39:56,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 144 transitions. [2024-11-12 21:39:56,494 INFO L240 hiAutomatonCegarLoop]: Abstraction has 110 states and 144 transitions. [2024-11-12 21:39:56,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:39:56,499 INFO L426 stractBuchiCegarLoop]: Abstraction has 110 states and 144 transitions. [2024-11-12 21:39:56,500 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:39:56,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 144 transitions. [2024-11-12 21:39:56,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2024-11-12 21:39:56,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:56,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:56,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:56,503 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] [2024-11-12 21:39:56,503 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:56,503 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:56,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-12 21:39:56,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:56,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021135930] [2024-11-12 21:39:56,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:56,519 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:56,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:56,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1621737077, now seen corresponding path program 1 times [2024-11-12 21:39:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:56,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493742581] [2024-11-12 21:39:56,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:39:56,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493742581] [2024-11-12 21:39:56,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493742581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:39:56,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573622148] [2024-11-12 21:39:56,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:39:56,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:56,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:39:56,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 21:39:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:39:56,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:39:56,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:39:56,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573622148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:39:56,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:39:56,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:39:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114276499] [2024-11-12 21:39:56,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:39:56,666 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:39:56,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:39:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:39:56,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:39:56,667 INFO L87 Difference]: Start difference. First operand 110 states and 144 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-12 21:39:56,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:39:56,732 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2024-11-12 21:39:56,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 218 transitions. [2024-11-12 21:39:56,734 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-12 21:39:56,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 218 transitions. [2024-11-12 21:39:56,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2024-11-12 21:39:56,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2024-11-12 21:39:56,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 218 transitions. [2024-11-12 21:39:56,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:39:56,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 218 transitions. [2024-11-12 21:39:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 218 transitions. [2024-11-12 21:39:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-11-12 21:39:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2748538011695907) internal successors, (218), 170 states have internal predecessors, (218), 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) [2024-11-12 21:39:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 218 transitions. [2024-11-12 21:39:56,753 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 218 transitions. [2024-11-12 21:39:56,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:39:56,754 INFO L426 stractBuchiCegarLoop]: Abstraction has 171 states and 218 transitions. [2024-11-12 21:39:56,754 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:39:56,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 218 transitions. [2024-11-12 21:39:56,756 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-12 21:39:56,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:56,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:56,757 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:56,757 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] [2024-11-12 21:39:56,757 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:56,758 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1;" "assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:56,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:56,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-12 21:39:56,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:56,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378576656] [2024-11-12 21:39:56,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:56,767 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:56,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:56,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash 105517631, now seen corresponding path program 1 times [2024-11-12 21:39:56,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:56,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574908625] [2024-11-12 21:39:56,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:39:56,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574908625] [2024-11-12 21:39:56,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574908625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:39:56,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379274592] [2024-11-12 21:39:56,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:56,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:39:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:56,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:39:56,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 21:39:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:56,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 21:39:56,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:39:56,921 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:39:56,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379274592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:39:56,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:39:56,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-12 21:39:56,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752223242] [2024-11-12 21:39:56,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:39:56,931 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:39:56,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:39:56,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 21:39:56,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 21:39:56,936 INFO L87 Difference]: Start difference. First operand 171 states and 218 transitions. cyclomatic complexity: 49 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:39:56,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:39:56,985 INFO L93 Difference]: Finished difference Result 177 states and 224 transitions. [2024-11-12 21:39:56,985 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177 states and 224 transitions. [2024-11-12 21:39:56,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2024-11-12 21:39:56,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177 states to 177 states and 224 transitions. [2024-11-12 21:39:56,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2024-11-12 21:39:56,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2024-11-12 21:39:56,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 224 transitions. [2024-11-12 21:39:56,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:39:56,993 INFO L218 hiAutomatonCegarLoop]: Abstraction has 177 states and 224 transitions. [2024-11-12 21:39:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 224 transitions. [2024-11-12 21:39:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-12 21:39:57,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.265536723163842) internal successors, (224), 176 states have internal predecessors, (224), 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) [2024-11-12 21:39:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 224 transitions. [2024-11-12 21:39:57,006 INFO L240 hiAutomatonCegarLoop]: Abstraction has 177 states and 224 transitions. [2024-11-12 21:39:57,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 21:39:57,008 INFO L426 stractBuchiCegarLoop]: Abstraction has 177 states and 224 transitions. [2024-11-12 21:39:57,009 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:39:57,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 224 transitions. [2024-11-12 21:39:57,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2024-11-12 21:39:57,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:57,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:57,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:57,012 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] [2024-11-12 21:39:57,013 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:57,014 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~7#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume !(0 != isHighWaterLevel_~tmp~2#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1;" "assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:57,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-11-12 21:39:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047122873] [2024-11-12 21:39:57,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,028 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:57,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash 806582209, now seen corresponding path program 1 times [2024-11-12 21:39:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854311966] [2024-11-12 21:39:57,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:57,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:39:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854311966] [2024-11-12 21:39:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854311966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:39:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225721923] [2024-11-12 21:39:57,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:39:57,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:57,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:39:57,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 21:39:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:57,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 21:39:57,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:39:57,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:39:57,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225721923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:39:57,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:39:57,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-12 21:39:57,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837517073] [2024-11-12 21:39:57,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:39:57,232 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:39:57,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:39:57,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 21:39:57,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 21:39:57,233 INFO L87 Difference]: Start difference. First operand 177 states and 224 transitions. cyclomatic complexity: 49 Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2024-11-12 21:39:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:39:57,296 INFO L93 Difference]: Finished difference Result 186 states and 233 transitions. [2024-11-12 21:39:57,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 233 transitions. [2024-11-12 21:39:57,298 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2024-11-12 21:39:57,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 186 states and 233 transitions. [2024-11-12 21:39:57,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2024-11-12 21:39:57,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2024-11-12 21:39:57,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 233 transitions. [2024-11-12 21:39:57,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:39:57,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-11-12 21:39:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 233 transitions. [2024-11-12 21:39:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-11-12 21:39:57,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 185 states have internal predecessors, (233), 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) [2024-11-12 21:39:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 233 transitions. [2024-11-12 21:39:57,309 INFO L240 hiAutomatonCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-11-12 21:39:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:39:57,310 INFO L426 stractBuchiCegarLoop]: Abstraction has 186 states and 233 transitions. [2024-11-12 21:39:57,310 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-12 21:39:57,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 233 transitions. [2024-11-12 21:39:57,311 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2024-11-12 21:39:57,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:57,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:57,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:57,312 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] [2024-11-12 21:39:57,313 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:57,313 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1;" "assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:57,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-11-12 21:39:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985728887] [2024-11-12 21:39:57,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,320 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:57,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash 692323645, now seen corresponding path program 1 times [2024-11-12 21:39:57,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059989122] [2024-11-12 21:39:57,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,337 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash -558681095, now seen corresponding path program 1 times [2024-11-12 21:39:57,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696840937] [2024-11-12 21:39:57,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:57,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:39:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696840937] [2024-11-12 21:39:57,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696840937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:39:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696234150] [2024-11-12 21:39:57,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:39:57,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:39:57,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:39:57,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 21:39:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:39:57,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 21:39:57,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:39:57,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:39:57,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696234150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:39:57,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:39:57,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-12 21:39:57,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799346965] [2024-11-12 21:39:57,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:39:57,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:39:57,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 21:39:57,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 21:39:57,779 INFO L87 Difference]: Start difference. First operand 186 states and 233 transitions. cyclomatic complexity: 49 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-12 21:39:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:39:57,853 INFO L93 Difference]: Finished difference Result 365 states and 451 transitions. [2024-11-12 21:39:57,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 451 transitions. [2024-11-12 21:39:57,856 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 260 [2024-11-12 21:39:57,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 451 transitions. [2024-11-12 21:39:57,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2024-11-12 21:39:57,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2024-11-12 21:39:57,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 451 transitions. [2024-11-12 21:39:57,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:39:57,861 INFO L218 hiAutomatonCegarLoop]: Abstraction has 365 states and 451 transitions. [2024-11-12 21:39:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 451 transitions. [2024-11-12 21:39:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-12 21:39:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 365 states have (on average 1.2356164383561643) internal successors, (451), 364 states have internal predecessors, (451), 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) [2024-11-12 21:39:57,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2024-11-12 21:39:57,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 365 states and 451 transitions. [2024-11-12 21:39:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:39:57,883 INFO L426 stractBuchiCegarLoop]: Abstraction has 365 states and 451 transitions. [2024-11-12 21:39:57,883 INFO L333 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-12 21:39:57,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 451 transitions. [2024-11-12 21:39:57,885 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 260 [2024-11-12 21:39:57,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:39:57,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:39:57,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:57,886 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:39:57,886 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~5#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret29#1;havoc main_#t~ret29#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:39:57,887 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet17#1;test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet18#1;test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet19#1;test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1;" "assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification3_spec__1_#t~ret22#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:39:57,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-11-12 21:39:57,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875852018] [2024-11-12 21:39:57,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,900 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:57,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,908 INFO L85 PathProgramCache]: Analyzing trace with hash -395715694, now seen corresponding path program 1 times [2024-11-12 21:39:57,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677451653] [2024-11-12 21:39:57,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,917 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:57,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:39:57,928 INFO L85 PathProgramCache]: Analyzing trace with hash -20427954, now seen corresponding path program 1 times [2024-11-12 21:39:57,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:39:57,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802004584] [2024-11-12 21:39:57,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:39:57,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:39:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,941 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:57,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:39:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:58,767 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:39:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:39:58,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:39:58 BoogieIcfgContainer [2024-11-12 21:39:58,824 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:39:58,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:39:58,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:39:58,826 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:39:58,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:39:55" (3/4) ... [2024-11-12 21:39:58,828 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:39:58,888 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:39:58,889 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:39:58,889 INFO L158 Benchmark]: Toolchain (without parser) took 4661.29ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 99.1MB in the beginning and 142.3MB in the end (delta: -43.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,890 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 176.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:39:58,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.95ms. Allocated memory is still 176.2MB. Free memory was 98.9MB in the beginning and 143.6MB in the end (delta: -44.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.50ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 140.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,891 INFO L158 Benchmark]: Boogie Preprocessor took 78.55ms. Allocated memory is still 176.2MB. Free memory was 140.7MB in the beginning and 137.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,891 INFO L158 Benchmark]: RCFGBuilder took 550.95ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 125.7MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,891 INFO L158 Benchmark]: BuchiAutomizer took 3383.04ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 125.7MB in the beginning and 145.5MB in the end (delta: -19.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,891 INFO L158 Benchmark]: Witness Printer took 63.34ms. Allocated memory is still 222.3MB. Free memory was 145.5MB in the beginning and 142.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:39:58,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 176.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.95ms. Allocated memory is still 176.2MB. Free memory was 98.9MB in the beginning and 143.6MB in the end (delta: -44.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.50ms. Allocated memory is still 176.2MB. Free memory was 143.6MB in the beginning and 140.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.55ms. Allocated memory is still 176.2MB. Free memory was 140.7MB in the beginning and 137.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 550.95ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 125.7MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 3383.04ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 125.7MB in the beginning and 145.5MB in the end (delta: -19.8MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 63.34ms. Allocated memory is still 222.3MB. Free memory was 145.5MB in the beginning and 142.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 267]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 465]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 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, 382 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 382 mSDsluCounter, 2153 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1431 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 722 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 281]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L466] int cleanupTimeShifts = 4; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] int retValue_acc ; [L540] int tmp ; [L544] FCALL select_helpers() [L545] FCALL select_features() [L546] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] RET, EXPR valid_product() [L546] tmp = valid_product() [L548] COND TRUE \read(tmp) [L550] FCALL setup() [L551] CALL runTest() [L533] CALL test() [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L324] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND TRUE ! pumpRunning [L139] CALL, EXPR isHighWaterLevel() [L249] int retValue_acc ; [L250] int tmp ; [L251] int tmp___0 ; [L255] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L255] RET, EXPR isHighWaterSensorDry() [L255] tmp = isHighWaterSensorDry() [L257] COND TRUE \read(tmp) [L258] tmp___0 = 0 [L262] retValue_acc = tmp___0 [L263] return (retValue_acc); [L139] RET, EXPR isHighWaterLevel() [L139] tmp = isHighWaterLevel() [L141] COND FALSE !(\read(tmp)) [L147] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L341] int tmp___1 ; [L345] CALL, EXPR isMethaneLevelCritical() [L411] int retValue_acc ; [L414] retValue_acc = methaneLevelCritical [L415] return (retValue_acc); [L345] RET, EXPR isMethaneLevelCritical() [L345] tmp = isMethaneLevelCritical() [L347] COND FALSE !(\read(tmp)) [L351] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L351] RET, EXPR getWaterLevel() [L351] tmp___0 = getWaterLevel() [L353] COND FALSE !(tmp___0 == 2) [L120] RET __utac_acc__Specification3_spec__1() [L324] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 281]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L466] int cleanupTimeShifts = 4; [L731] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L539] int retValue_acc ; [L540] int tmp ; [L544] FCALL select_helpers() [L545] FCALL select_features() [L546] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] RET, EXPR valid_product() [L546] tmp = valid_product() [L548] COND TRUE \read(tmp) [L550] FCALL setup() [L551] CALL runTest() [L533] CALL test() [L272] int splverifierCounter ; [L273] int tmp ; [L274] int tmp___0 ; [L275] int tmp___1 ; [L276] int tmp___2 ; [L279] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L281] COND TRUE 1 [L283] COND TRUE splverifierCounter < 4 [L289] tmp = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp)) [L299] tmp___0 = __VERIFIER_nondet_int() [L301] COND FALSE !(\read(tmp___0)) [L309] tmp___2 = __VERIFIER_nondet_int() [L311] COND TRUE \read(tmp___2) [L324] CALL timeShift() [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L114] CALL processEnvironment() [L134] int tmp ; [L137] COND TRUE ! pumpRunning [L139] CALL, EXPR isHighWaterLevel() [L249] int retValue_acc ; [L250] int tmp ; [L251] int tmp___0 ; [L255] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L255] RET, EXPR isHighWaterSensorDry() [L255] tmp = isHighWaterSensorDry() [L257] COND TRUE \read(tmp) [L258] tmp___0 = 0 [L262] retValue_acc = tmp___0 [L263] return (retValue_acc); [L139] RET, EXPR isHighWaterLevel() [L139] tmp = isHighWaterLevel() [L141] COND FALSE !(\read(tmp)) [L147] FCALL processEnvironment__wrappee__base() [L114] RET processEnvironment() [L120] CALL __utac_acc__Specification3_spec__1() [L339] int tmp ; [L340] int tmp___0 ; [L341] int tmp___1 ; [L345] CALL, EXPR isMethaneLevelCritical() [L411] int retValue_acc ; [L414] retValue_acc = methaneLevelCritical [L415] return (retValue_acc); [L345] RET, EXPR isMethaneLevelCritical() [L345] tmp = isMethaneLevelCritical() [L347] COND FALSE !(\read(tmp)) [L351] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L351] RET, EXPR getWaterLevel() [L351] tmp___0 = getWaterLevel() [L353] COND FALSE !(tmp___0 == 2) [L120] RET __utac_acc__Specification3_spec__1() [L324] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:39:58,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 21:39:59,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 21:39:59,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 21:39:59,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 21:39:59,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 21:39:59,923 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)