./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.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 aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:41:12,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:41:12,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:41:12,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:41:12,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:41:12,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:41:12,774 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:41:12,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:41:12,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:41:12,775 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:41:12,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:41:12,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:41:12,778 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:41:12,783 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:41:12,783 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:41:12,783 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:41:12,783 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:41:12,784 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:41:12,784 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:41:12,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:41:12,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:41:12,786 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:41:12,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:41:12,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:41:12,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:41:12,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:41:12,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:41:12,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:41:12,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:41:12,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:41:12,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:41:12,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:41:12,789 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:41:12,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:41:12,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:41:12,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:41:12,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:41:12,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:41:12,791 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:41:12,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2024-10-13 17:41:13,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:41:13,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:41:13,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:41:13,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:41:13,118 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:41:13,119 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2024-10-13 17:41:14,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:41:14,786 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:41:14,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2024-10-13 17:41:14,838 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41635e13/b613d0167e01496aa7de529398bc83a2/FLAGfb4d04ada [2024-10-13 17:41:14,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b41635e13/b613d0167e01496aa7de529398bc83a2 [2024-10-13 17:41:14,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:41:14,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:41:14,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:41:14,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:41:14,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:41:14,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:41:14" (1/1) ... [2024-10-13 17:41:14,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6713bbbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:14, skipping insertion in model container [2024-10-13 17:41:14,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:41:14" (1/1) ... [2024-10-13 17:41:14,939 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:41:15,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:41:15,236 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:41:15,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-10-13 17:41:15,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-10-13 17:41:15,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] [2024-10-13 17:41:15,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] [2024-10-13 17:41:15,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2024-10-13 17:41:15,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] [2024-10-13 17:41:15,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] [2024-10-13 17:41:15,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] [2024-10-13 17:41:15,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:41:15,333 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:41:15,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15 WrapperNode [2024-10-13 17:41:15,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:41:15,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:41:15,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:41:15,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:41:15,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,396 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 105, statements flattened = 715 [2024-10-13 17:41:15,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:41:15,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:41:15,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:41:15,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:41:15,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,439 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 17:41:15,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:41:15,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:41:15,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:41:15,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:41:15,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (1/1) ... [2024-10-13 17:41:15,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:41:15,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:41:15,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-13 17:41:15,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-13 17:41:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:41:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:41:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:41:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:41:15,750 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:41:15,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:41:16,213 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-10-13 17:41:16,213 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:41:16,237 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:41:16,238 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:41:16,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:16 BoogieIcfgContainer [2024-10-13 17:41:16,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:41:16,239 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:41:16,240 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:41:16,243 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:41:16,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:16,243 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:41:14" (1/3) ... [2024-10-13 17:41:16,244 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a887b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:41:16, skipping insertion in model container [2024-10-13 17:41:16,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:16,244 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:41:15" (2/3) ... [2024-10-13 17:41:16,244 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a887b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:41:16, skipping insertion in model container [2024-10-13 17:41:16,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:41:16,244 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:16" (3/3) ... [2024-10-13 17:41:16,245 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2024-10-13 17:41:16,291 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:41:16,292 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:41:16,292 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:41:16,292 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:41:16,292 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:41:16,292 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:41:16,292 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:41:16,292 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:41:16,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 199 states, 198 states have (on average 1.3535353535353536) internal successors, (268), 198 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:16,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-10-13 17:41:16,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:16,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:16,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:16,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:16,329 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:41:16,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 199 states, 198 states have (on average 1.3535353535353536) internal successors, (268), 198 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:16,344 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2024-10-13 17:41:16,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:16,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:16,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:16,346 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:16,350 INFO L745 eck$LassoCheckResult]: Stem: 109#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 118#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 19#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 173#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 62#valid_product_returnLabel#1true main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 39#L186true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 45#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 185#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 90#L735-2true [2024-10-13 17:41:16,351 INFO L747 eck$LassoCheckResult]: Loop: 90#L735-2true assume !false; 112#L736true assume test_~splverifierCounter~0#1 < 4; 20#L737true havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 51#L745true assume !(0 != test_~tmp~5#1); 180#L745-2true havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 18#L755true assume !(0 != test_~tmp___0~1#1); 190#L755-2true havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 154#L765true assume 0 != test_~tmp___2~0#1; 36#L771-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 181#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 151#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 127#L802true assume !(0 != ~pumpRunning~0); 63#L802-2true assume !(0 != ~systemActive~0); 169#L809-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 133#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 11#L703true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 29#L703-1true havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 134#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 90#L735-2true [2024-10-13 17:41:16,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:16,356 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-10-13 17:41:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101410463] [2024-10-13 17:41:16,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:16,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:16,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:16,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:16,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:16,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1354184786, now seen corresponding path program 1 times [2024-10-13 17:41:16,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:16,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739787952] [2024-10-13 17:41:16,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:16,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:16,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:16,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:16,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:16,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1601430103, now seen corresponding path program 1 times [2024-10-13 17:41:16,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:16,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129204782] [2024-10-13 17:41:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:16,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:16,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129204782] [2024-10-13 17:41:16,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129204782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:16,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:16,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:41:16,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000411351] [2024-10-13 17:41:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:16,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:16,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 17:41:16,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 17:41:16,983 INFO L87 Difference]: Start difference. First operand has 199 states, 198 states have (on average 1.3535353535353536) internal successors, (268), 198 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:17,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:17,080 INFO L93 Difference]: Finished difference Result 193 states and 251 transitions. [2024-10-13 17:41:17,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 251 transitions. [2024-10-13 17:41:17,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-10-13 17:41:17,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 183 states and 241 transitions. [2024-10-13 17:41:17,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2024-10-13 17:41:17,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2024-10-13 17:41:17,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 241 transitions. [2024-10-13 17:41:17,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:17,100 INFO L218 hiAutomatonCegarLoop]: Abstraction has 183 states and 241 transitions. [2024-10-13 17:41:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 241 transitions. [2024-10-13 17:41:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-10-13 17:41:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.3169398907103824) internal successors, (241), 182 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2024-10-13 17:41:17,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 183 states and 241 transitions. [2024-10-13 17:41:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:41:17,149 INFO L425 stractBuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2024-10-13 17:41:17,149 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:41:17,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 241 transitions. [2024-10-13 17:41:17,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2024-10-13 17:41:17,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:17,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:17,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,153 INFO L745 eck$LassoCheckResult]: Stem: 475#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 476#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 469#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 470#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 567#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 527#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 528#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 539#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 524#L735-2 [2024-10-13 17:41:17,153 INFO L747 eck$LassoCheckResult]: Loop: 524#L735-2 assume !false; 483#L736 assume test_~splverifierCounter~0#1 < 4; 471#L737 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 472#L745 assume !(0 != test_~tmp~5#1); 551#L745-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 464#L755 assume !(0 != test_~tmp___0~1#1); 466#L755-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 564#L765 assume 0 != test_~tmp___2~0#1; 521#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 522#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 561#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 506#L802 assume !(0 != ~pumpRunning~0); 508#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 568#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 585#L834-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 413#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 414#L834-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 415#L860-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 579#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 523#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 444#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 446#L703-1 havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 505#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 524#L735-2 [2024-10-13 17:41:17,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-10-13 17:41:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972022499] [2024-10-13 17:41:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:17,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash 909616475, now seen corresponding path program 1 times [2024-10-13 17:41:17,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242484200] [2024-10-13 17:41:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242484200] [2024-10-13 17:41:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242484200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:17,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:17,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:41:17,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261200794] [2024-10-13 17:41:17,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:17,208 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:17,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:17,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 17:41:17,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 17:41:17,209 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:17,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:17,362 INFO L93 Difference]: Finished difference Result 253 states and 321 transitions. [2024-10-13 17:41:17,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 253 states and 321 transitions. [2024-10-13 17:41:17,365 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2024-10-13 17:41:17,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 253 states to 253 states and 321 transitions. [2024-10-13 17:41:17,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2024-10-13 17:41:17,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2024-10-13 17:41:17,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 321 transitions. [2024-10-13 17:41:17,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:17,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 253 states and 321 transitions. [2024-10-13 17:41:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 321 transitions. [2024-10-13 17:41:17,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-10-13 17:41:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.2687747035573123) internal successors, (321), 252 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:17,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 321 transitions. [2024-10-13 17:41:17,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 253 states and 321 transitions. [2024-10-13 17:41:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 17:41:17,414 INFO L425 stractBuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2024-10-13 17:41:17,414 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-13 17:41:17,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 321 transitions. [2024-10-13 17:41:17,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2024-10-13 17:41:17,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:17,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:17,421 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,421 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,421 INFO L745 eck$LassoCheckResult]: Stem: 913#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 914#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 907#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 908#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1014#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 965#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 966#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 980#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 963#L735-2 [2024-10-13 17:41:17,422 INFO L747 eck$LassoCheckResult]: Loop: 963#L735-2 assume !false; 921#L736 assume test_~splverifierCounter~0#1 < 4; 909#L737 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 910#L745 assume !(0 != test_~tmp~5#1); 993#L745-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 902#L755 assume !(0 != test_~tmp___0~1#1); 904#L755-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1011#L765 assume 0 != test_~tmp___2~0#1; 960#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 961#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 1042#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 946#L802 assume !(0 != ~pumpRunning~0); 947#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1015#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1036#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 857#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 858#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 933#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 905#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 906#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1022#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 927#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 852#L834-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 853#L860-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1029#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 962#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 883#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 885#L703-1 havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 945#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 963#L735-2 [2024-10-13 17:41:17,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-10-13 17:41:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938084432] [2024-10-13 17:41:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:17,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,447 INFO L85 PathProgramCache]: Analyzing trace with hash -92716653, now seen corresponding path program 1 times [2024-10-13 17:41:17,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033843847] [2024-10-13 17:41:17,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:41:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:41:17,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:41:17,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033843847] [2024-10-13 17:41:17,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033843847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:41:17,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:41:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 17:41:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320637707] [2024-10-13 17:41:17,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:41:17,532 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-13 17:41:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:41:17,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:41:17,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:41:17,534 INFO L87 Difference]: Start difference. First operand 253 states and 321 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 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) [2024-10-13 17:41:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:41:17,676 INFO L93 Difference]: Finished difference Result 496 states and 618 transitions. [2024-10-13 17:41:17,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 496 states and 618 transitions. [2024-10-13 17:41:17,680 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 346 [2024-10-13 17:41:17,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 496 states to 496 states and 618 transitions. [2024-10-13 17:41:17,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 496 [2024-10-13 17:41:17,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 496 [2024-10-13 17:41:17,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 496 states and 618 transitions. [2024-10-13 17:41:17,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:41:17,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 496 states and 618 transitions. [2024-10-13 17:41:17,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states and 618 transitions. [2024-10-13 17:41:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-10-13 17:41:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 496 states have (on average 1.2459677419354838) internal successors, (618), 495 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 17:41:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 618 transitions. [2024-10-13 17:41:17,713 INFO L240 hiAutomatonCegarLoop]: Abstraction has 496 states and 618 transitions. [2024-10-13 17:41:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 17:41:17,714 INFO L425 stractBuchiCegarLoop]: Abstraction has 496 states and 618 transitions. [2024-10-13 17:41:17,714 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-13 17:41:17,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 496 states and 618 transitions. [2024-10-13 17:41:17,716 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 346 [2024-10-13 17:41:17,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:41:17,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:41:17,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,717 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 17:41:17,718 INFO L745 eck$LassoCheckResult]: Stem: 1674#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1675#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1668#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1669#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1781#valid_product_returnLabel#1 main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 1732#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1733#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1746#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1730#L735-2 [2024-10-13 17:41:17,718 INFO L747 eck$LassoCheckResult]: Loop: 1730#L735-2 assume !false; 1682#L736 assume test_~splverifierCounter~0#1 < 4; 1683#L737 havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1758#L745 assume !(0 != test_~tmp~5#1); 1760#L745-2 havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1663#L755 assume !(0 != test_~tmp___0~1#1); 1665#L755-2 havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1778#L765 assume 0 != test_~tmp___2~0#1; 1727#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 1728#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 1774#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1707#L802 assume !(0 != ~pumpRunning~0); 1708#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1782#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1807#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1618#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1619#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1695#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1666#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1667#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1790#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1689#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1613#L834-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1614#L860-1 havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true; 1799#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1729#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 1644#L703 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 1645#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1; 1734#L707 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1647#L703-1 havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1706#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1730#L735-2 [2024-10-13 17:41:17,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-10-13 17:41:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845427198] [2024-10-13 17:41:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:17,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1072607406, now seen corresponding path program 1 times [2024-10-13 17:41:17,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835716971] [2024-10-13 17:41:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:17,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:41:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash 260567205, now seen corresponding path program 1 times [2024-10-13 17:41:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:41:17,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797779714] [2024-10-13 17:41:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:41:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:41:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:17,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:41:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:18,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:41:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:41:18,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:41:18 BoogieIcfgContainer [2024-10-13 17:41:18,753 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:41:18,754 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:41:18,754 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:41:18,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:41:18,756 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:41:16" (3/4) ... [2024-10-13 17:41:18,757 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:41:18,824 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:41:18,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:41:18,827 INFO L158 Benchmark]: Toolchain (without parser) took 3963.37ms. Allocated memory was 186.6MB in the beginning and 247.5MB in the end (delta: 60.8MB). Free memory was 154.8MB in the beginning and 138.8MB in the end (delta: 16.0MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,827 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 186.6MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:41:18,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.22ms. Allocated memory is still 186.6MB. Free memory was 154.6MB in the beginning and 137.9MB in the end (delta: 16.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.19ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 133.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,828 INFO L158 Benchmark]: Boogie Preprocessor took 68.70ms. Allocated memory is still 186.6MB. Free memory was 133.8MB in the beginning and 130.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,828 INFO L158 Benchmark]: RCFGBuilder took 767.47ms. Allocated memory is still 186.6MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,828 INFO L158 Benchmark]: BuchiAutomizer took 2513.76ms. Allocated memory was 186.6MB in the beginning and 247.5MB in the end (delta: 60.8MB). Free memory was 126.5MB in the beginning and 142.0MB in the end (delta: -15.5MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,828 INFO L158 Benchmark]: Witness Printer took 72.39ms. Allocated memory is still 247.5MB. Free memory was 142.0MB in the beginning and 138.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:41:18,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 186.6MB. Free memory is still 154.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.22ms. Allocated memory is still 186.6MB. Free memory was 154.6MB in the beginning and 137.9MB in the end (delta: 16.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.19ms. Allocated memory is still 186.6MB. Free memory was 137.9MB in the beginning and 133.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.70ms. Allocated memory is still 186.6MB. Free memory was 133.8MB in the beginning and 130.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 767.47ms. Allocated memory is still 186.6MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2513.76ms. Allocated memory was 186.6MB in the beginning and 247.5MB in the end (delta: 60.8MB). Free memory was 126.5MB in the beginning and 142.0MB in the end (delta: -15.5MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 72.39ms. Allocated memory is still 247.5MB. Free memory was 142.0MB in the beginning and 138.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] - GenericResultAtLocation [Line: 724]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] - GenericResultAtLocation [Line: 789]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 496 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 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, 630 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 630 mSDsluCounter, 2004 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1287 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 717 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 735]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 735]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:41:18,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)