./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 07:48:29,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:48:29,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:48:29,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:48:29,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:48:29,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:48:29,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:48:29,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:48:29,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:48:29,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:48:29,111 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:48:29,111 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:48:29,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:48:29,112 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:48:29,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:48:29,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:48:29,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:48:29,114 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:48:29,114 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2025-01-10 07:48:29,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:48:29,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:48:29,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:48:29,380 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:48:29,381 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:48:29,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2025-01-10 07:48:30,713 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5fffefb/b7bb5d56e7e4418d831caadfda06db0d/FLAGfadb6ce39 [2025-01-10 07:48:31,014 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:48:31,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2025-01-10 07:48:31,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5fffefb/b7bb5d56e7e4418d831caadfda06db0d/FLAGfadb6ce39 [2025-01-10 07:48:31,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b5fffefb/b7bb5d56e7e4418d831caadfda06db0d [2025-01-10 07:48:31,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:48:31,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:48:31,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:48:31,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:48:31,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:48:31,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbc6213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31, skipping insertion in model container [2025-01-10 07:48:31,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:48:31,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:48:31,394 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:48:31,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2025-01-10 07:48:31,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2025-01-10 07:48:31,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] [2025-01-10 07:48:31,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] [2025-01-10 07:48:31,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] [2025-01-10 07:48:31,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] [2025-01-10 07:48:31,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2025-01-10 07:48:31,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2025-01-10 07:48:31,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:48:31,493 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:48:31,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31 WrapperNode [2025-01-10 07:48:31,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:48:31,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:48:31,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:48:31,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:48:31,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,576 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 147, statements flattened = 985 [2025-01-10 07:48:31,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:48:31,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:48:31,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:48:31,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:48:31,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,620 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]. [2025-01-10 07:48:31,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,629 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:48:31,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:48:31,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:48:31,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:48:31,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (1/1) ... [2025-01-10 07:48:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:48:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:48:31,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:48:31,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:48:31,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:48:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:48:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:48:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:48:31,797 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:48:31,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:48:32,480 INFO L? ?]: Removed 241 outVars from TransFormulas that were not future-live. [2025-01-10 07:48:32,480 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:48:32,495 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:48:32,496 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-10 07:48:32,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:32 BoogieIcfgContainer [2025-01-10 07:48:32,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:48:32,499 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:48:32,499 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:48:32,505 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:48:32,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:32,506 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:48:31" (1/3) ... [2025-01-10 07:48:32,507 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc727d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:48:32, skipping insertion in model container [2025-01-10 07:48:32,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:32,507 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:48:31" (2/3) ... [2025-01-10 07:48:32,508 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46fc727d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:48:32, skipping insertion in model container [2025-01-10 07:48:32,508 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:48:32,508 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:32" (3/3) ... [2025-01-10 07:48:32,509 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2025-01-10 07:48:32,589 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:48:32,590 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:48:32,590 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:48:32,590 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:48:32,590 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:48:32,590 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:48:32,591 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:48:32,591 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:48:32,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3607142857142858) internal successors, (381), 280 states have internal predecessors, (381), 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) [2025-01-10 07:48:32,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2025-01-10 07:48:32,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:32,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:32,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:32,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:32,639 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:48:32,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3607142857142858) internal successors, (381), 280 states have internal predecessors, (381), 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) [2025-01-10 07:48:32,669 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 182 [2025-01-10 07:48:32,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:32,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:32,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:32,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:32,677 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:32,677 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:32,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2025-01-10 07:48:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:32,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727979029] [2025-01-10 07:48:32,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:32,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:32,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:32,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:32,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:32,790 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:32,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:32,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:32,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:32,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:32,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:32,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash 521983678, now seen corresponding path program 1 times [2025-01-10 07:48:32,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:32,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005734402] [2025-01-10 07:48:32,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:32,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 07:48:32,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 07:48:32,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:32,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:32,855 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:32,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 07:48:32,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 07:48:32,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:32,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:32,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:32,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash -213957899, now seen corresponding path program 1 times [2025-01-10 07:48:32,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:32,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349927484] [2025-01-10 07:48:32,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:32,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:32,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 07:48:32,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 07:48:32,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:32,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:33,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:33,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349927484] [2025-01-10 07:48:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349927484] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:33,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:33,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:48:33,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639090435] [2025-01-10 07:48:33,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:33,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:33,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 07:48:33,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 07:48:33,313 INFO L87 Difference]: Start difference. First operand has 281 states, 280 states have (on average 1.3607142857142858) internal successors, (381), 280 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:48:33,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:33,421 INFO L93 Difference]: Finished difference Result 275 states and 366 transitions. [2025-01-10 07:48:33,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 366 transitions. [2025-01-10 07:48:33,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2025-01-10 07:48:33,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 265 states and 356 transitions. [2025-01-10 07:48:33,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 265 [2025-01-10 07:48:33,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 265 [2025-01-10 07:48:33,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 265 states and 356 transitions. [2025-01-10 07:48:33,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:33,451 INFO L218 hiAutomatonCegarLoop]: Abstraction has 265 states and 356 transitions. [2025-01-10 07:48:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states and 356 transitions. [2025-01-10 07:48:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2025-01-10 07:48:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 265 states have (on average 1.3433962264150943) internal successors, (356), 264 states have internal predecessors, (356), 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) [2025-01-10 07:48:33,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 356 transitions. [2025-01-10 07:48:33,489 INFO L240 hiAutomatonCegarLoop]: Abstraction has 265 states and 356 transitions. [2025-01-10 07:48:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 07:48:33,495 INFO L432 stractBuchiCegarLoop]: Abstraction has 265 states and 356 transitions. [2025-01-10 07:48:33,496 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:48:33,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 356 transitions. [2025-01-10 07:48:33,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2025-01-10 07:48:33,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:33,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:33,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:33,500 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] [2025-01-10 07:48:33,500 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:33,501 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret30#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1;" "isMethaneAlarm_#t~ret30#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret30#1;havoc isMethaneAlarm_#t~ret30#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1;" "processEnvironment_#t~ret29#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret30#1, isMethaneAlarm_~retValue_acc~3#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret29#1;havoc processEnvironment_#t~ret29#1;" "assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:33,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2025-01-10 07:48:33,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:33,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543679263] [2025-01-10 07:48:33,502 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:48:33,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:33,516 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:33,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:33,524 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:48:33,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:33,524 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:33,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:33,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:33,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:33,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:33,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:33,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash -608051001, now seen corresponding path program 1 times [2025-01-10 07:48:33,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:33,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516966620] [2025-01-10 07:48:33,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:33,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:33,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 07:48:33,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 07:48:33,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:33,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:33,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:33,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516966620] [2025-01-10 07:48:33,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516966620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:33,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:33,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:48:33,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583042280] [2025-01-10 07:48:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:33,589 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:48:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:33,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:48:33,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:48:33,590 INFO L87 Difference]: Start difference. First operand 265 states and 356 transitions. cyclomatic complexity: 93 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) [2025-01-10 07:48:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:33,723 INFO L93 Difference]: Finished difference Result 282 states and 359 transitions. [2025-01-10 07:48:33,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 359 transitions. [2025-01-10 07:48:33,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2025-01-10 07:48:33,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 282 states and 359 transitions. [2025-01-10 07:48:33,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 282 [2025-01-10 07:48:33,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 282 [2025-01-10 07:48:33,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 282 states and 359 transitions. [2025-01-10 07:48:33,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:33,730 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282 states and 359 transitions. [2025-01-10 07:48:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states and 359 transitions. [2025-01-10 07:48:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2025-01-10 07:48:33,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 282 states have (on average 1.2730496453900708) internal successors, (359), 281 states have internal predecessors, (359), 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) [2025-01-10 07:48:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 359 transitions. [2025-01-10 07:48:33,741 INFO L240 hiAutomatonCegarLoop]: Abstraction has 282 states and 359 transitions. [2025-01-10 07:48:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:48:33,743 INFO L432 stractBuchiCegarLoop]: Abstraction has 282 states and 359 transitions. [2025-01-10 07:48:33,743 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:48:33,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 282 states and 359 transitions. [2025-01-10 07:48:33,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 192 [2025-01-10 07:48:33,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:33,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:33,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:33,745 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] [2025-01-10 07:48:33,746 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:33,747 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:33,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2025-01-10 07:48:33,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:33,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798636955] [2025-01-10 07:48:33,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:48:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:33,752 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:33,757 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:33,757 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 07:48:33,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:33,757 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:33,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:33,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:33,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:33,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:33,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:33,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:33,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1476337854, now seen corresponding path program 1 times [2025-01-10 07:48:33,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:33,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121373559] [2025-01-10 07:48:33,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:33,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:33,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 07:48:33,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 07:48:33,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:33,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:33,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121373559] [2025-01-10 07:48:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121373559] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 07:48:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376101497] [2025-01-10 07:48:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:33,813 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:48:33,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:33,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 07:48:33,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 07:48:33,815 INFO L87 Difference]: Start difference. First operand 282 states and 359 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:48:33,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:33,975 INFO L93 Difference]: Finished difference Result 300 states and 377 transitions. [2025-01-10 07:48:33,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 300 states and 377 transitions. [2025-01-10 07:48:33,977 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2025-01-10 07:48:33,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 300 states to 300 states and 377 transitions. [2025-01-10 07:48:33,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 300 [2025-01-10 07:48:33,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 300 [2025-01-10 07:48:33,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 300 states and 377 transitions. [2025-01-10 07:48:33,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:33,981 INFO L218 hiAutomatonCegarLoop]: Abstraction has 300 states and 377 transitions. [2025-01-10 07:48:33,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states and 377 transitions. [2025-01-10 07:48:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2025-01-10 07:48:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 300 states have (on average 1.2566666666666666) internal successors, (377), 299 states have internal predecessors, (377), 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) [2025-01-10 07:48:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 377 transitions. [2025-01-10 07:48:33,990 INFO L240 hiAutomatonCegarLoop]: Abstraction has 300 states and 377 transitions. [2025-01-10 07:48:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 07:48:33,993 INFO L432 stractBuchiCegarLoop]: Abstraction has 300 states and 377 transitions. [2025-01-10 07:48:33,993 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 07:48:33,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 300 states and 377 transitions. [2025-01-10 07:48:33,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2025-01-10 07:48:33,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:33,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:33,996 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:33,996 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] [2025-01-10 07:48:33,996 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:33,996 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~12#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1;" "assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:33,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:33,999 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2025-01-10 07:48:33,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:33,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129410756] [2025-01-10 07:48:34,000 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 07:48:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,008 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 8 statements into 2 equivalence classes. [2025-01-10 07:48:34,014 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,015 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 07:48:34,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,015 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:34,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:34,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:34,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2063143868, now seen corresponding path program 1 times [2025-01-10 07:48:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483296452] [2025-01-10 07:48:34,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:34,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 07:48:34,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 07:48:34,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:34,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483296452] [2025-01-10 07:48:34,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483296452] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:34,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:34,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:48:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94770721] [2025-01-10 07:48:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:34,093 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:48:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:34,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 07:48:34,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 07:48:34,094 INFO L87 Difference]: Start difference. First operand 300 states and 377 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:48:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:34,276 INFO L93 Difference]: Finished difference Result 327 states and 404 transitions. [2025-01-10 07:48:34,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 404 transitions. [2025-01-10 07:48:34,279 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2025-01-10 07:48:34,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 327 states and 404 transitions. [2025-01-10 07:48:34,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 327 [2025-01-10 07:48:34,281 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2025-01-10 07:48:34,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 327 states and 404 transitions. [2025-01-10 07:48:34,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:34,282 INFO L218 hiAutomatonCegarLoop]: Abstraction has 327 states and 404 transitions. [2025-01-10 07:48:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states and 404 transitions. [2025-01-10 07:48:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2025-01-10 07:48:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 327 states have (on average 1.235474006116208) internal successors, (404), 326 states have internal predecessors, (404), 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) [2025-01-10 07:48:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 404 transitions. [2025-01-10 07:48:34,302 INFO L240 hiAutomatonCegarLoop]: Abstraction has 327 states and 404 transitions. [2025-01-10 07:48:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 07:48:34,308 INFO L432 stractBuchiCegarLoop]: Abstraction has 327 states and 404 transitions. [2025-01-10 07:48:34,308 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-01-10 07:48:34,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 404 transitions. [2025-01-10 07:48:34,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 222 [2025-01-10 07:48:34,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:34,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:34,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:34,311 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] [2025-01-10 07:48:34,311 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:34,311 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:34,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,312 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2025-01-10 07:48:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948676971] [2025-01-10 07:48:34,312 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 07:48:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,317 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:34,322 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,323 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:48:34,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,323 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:34,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:34,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:34,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,330 INFO L85 PathProgramCache]: Analyzing trace with hash -196474176, now seen corresponding path program 1 times [2025-01-10 07:48:34,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244048107] [2025-01-10 07:48:34,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:34,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 07:48:34,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 07:48:34,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:48:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:48:34,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:48:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244048107] [2025-01-10 07:48:34,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244048107] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:48:34,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:48:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:48:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319594368] [2025-01-10 07:48:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:48:34,413 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:48:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:48:34,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 07:48:34,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 07:48:34,413 INFO L87 Difference]: Start difference. First operand 327 states and 404 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:48:34,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:48:34,585 INFO L93 Difference]: Finished difference Result 580 states and 710 transitions. [2025-01-10 07:48:34,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 580 states and 710 transitions. [2025-01-10 07:48:34,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 400 [2025-01-10 07:48:34,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 580 states to 580 states and 710 transitions. [2025-01-10 07:48:34,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 580 [2025-01-10 07:48:34,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 580 [2025-01-10 07:48:34,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 580 states and 710 transitions. [2025-01-10 07:48:34,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:48:34,593 INFO L218 hiAutomatonCegarLoop]: Abstraction has 580 states and 710 transitions. [2025-01-10 07:48:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states and 710 transitions. [2025-01-10 07:48:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2025-01-10 07:48:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 577 states have (on average 1.220103986135182) internal successors, (704), 576 states have internal predecessors, (704), 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) [2025-01-10 07:48:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 704 transitions. [2025-01-10 07:48:34,605 INFO L240 hiAutomatonCegarLoop]: Abstraction has 577 states and 704 transitions. [2025-01-10 07:48:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 07:48:34,605 INFO L432 stractBuchiCegarLoop]: Abstraction has 577 states and 704 transitions. [2025-01-10 07:48:34,606 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-01-10 07:48:34,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 577 states and 704 transitions. [2025-01-10 07:48:34,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 398 [2025-01-10 07:48:34,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:48:34,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:48:34,610 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:48:34,610 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, 1] [2025-01-10 07:48:34,611 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1;" "main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret49#1;havoc main_#t~ret49#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet42#1, test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:48:34,611 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet42#1;test_~tmp~8#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1;" "assume !(0 != test_~tmp~8#1);" "havoc test_#t~nondet43#1;test_~tmp___0~2#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet44#1;test_~tmp___2~0#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__2_#t~ret46#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret46#1;havoc __utac_acc__Specification5_spec__2_#t~ret46#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret46#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret39#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret39#1;havoc isHighWaterLevel_#t~ret39#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret27#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret39#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret27#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret27#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret28#1, processEnvironment__wrappee__lowWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret29#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret47#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret47#1;havoc __utac_acc__Specification5_spec__3_#t~ret47#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;havoc isPumpRunning_~retValue_acc~4#1;isPumpRunning_~retValue_acc~4#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__3_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~4#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret48#1;havoc __utac_acc__Specification5_spec__3_#t~ret48#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret47#1, __utac_acc__Specification5_spec__3_#t~ret48#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:48:34,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,611 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2025-01-10 07:48:34,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988713733] [2025-01-10 07:48:34,611 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 07:48:34,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,617 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:34,619 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,620 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-10 07:48:34,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,620 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:34,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:34,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:34,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:34,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash 145878459, now seen corresponding path program 1 times [2025-01-10 07:48:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417925668] [2025-01-10 07:48:34,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:34,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:48:34,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:48:34,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,651 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:34,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:48:34,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:48:34,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:34,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:48:34,686 INFO L85 PathProgramCache]: Analyzing trace with hash 742436004, now seen corresponding path program 1 times [2025-01-10 07:48:34,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:48:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287322331] [2025-01-10 07:48:34,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:48:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:48:34,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 07:48:34,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 07:48:34,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:34,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 07:48:34,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 07:48:34,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:34,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:34,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:48:35,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:35,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:35,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:35,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:35,598 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:48:35,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:48:35,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:48:35,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:48:35,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:48:35,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:48:35 BoogieIcfgContainer [2025-01-10 07:48:35,655 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:48:35,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:48:35,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:48:35,656 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:48:35,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:48:32" (3/4) ... [2025-01-10 07:48:35,658 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 07:48:35,706 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 07:48:35,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:48:35,707 INFO L158 Benchmark]: Toolchain (without parser) took 4661.61ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 41.8MB in the end (delta: 70.3MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2025-01-10 07:48:35,707 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:35,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.90ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 93.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:48:35,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.40ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 89.2MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:48:35,708 INFO L158 Benchmark]: Boogie Preprocessor took 80.39ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 85.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:35,708 INFO L158 Benchmark]: RCFGBuilder took 837.74ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 45.9MB in the end (delta: 39.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-10 07:48:35,709 INFO L158 Benchmark]: BuchiAutomizer took 3156.47ms. Allocated memory is still 142.6MB. Free memory was 45.9MB in the beginning and 45.5MB in the end (delta: 418.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:35,709 INFO L158 Benchmark]: Witness Printer took 50.36ms. Allocated memory is still 142.6MB. Free memory was 45.5MB in the beginning and 41.8MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:48:35,719 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 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.90ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 93.3MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.40ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 89.2MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.39ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 85.1MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 837.74ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 45.9MB in the end (delta: 39.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3156.47ms. Allocated memory is still 142.6MB. Free memory was 45.9MB in the beginning and 45.5MB in the end (delta: 418.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.36ms. Allocated memory is still 142.6MB. Free memory was 45.5MB in the beginning and 41.8MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] - GenericResultAtLocation [Line: 759]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 577 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.4s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 802 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 802 mSDsluCounter, 4271 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2796 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 509 IncrementalHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 1475 mSDtfsCounter, 509 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 707]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L762] int switchedOnBeforeTS ; [L811] int cleanupTimeShifts = 4; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L885] int retValue_acc ; [L886] int tmp ; [L890] FCALL select_helpers() [L891] FCALL select_features() [L892] CALL, EXPR valid_product() [L683] int retValue_acc ; [L686] retValue_acc = 1 [L687] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L892] RET, EXPR valid_product() [L892] tmp = valid_product() [L894] COND TRUE \read(tmp) [L896] FCALL setup() [L897] CALL runTest() [L878] CALL __utac_acc__Specification5_spec__1() [L767] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L878] RET __utac_acc__Specification5_spec__1() [L879] CALL test() [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L748] CALL timeShift() [L436] CALL __utac_acc__Specification5_spec__2() [L776] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L776] RET, EXPR isPumpRunning() [L776] switchedOnBeforeTS = isPumpRunning() [L436] RET __utac_acc__Specification5_spec__2() [L438] COND FALSE !(\read(pumpRunning)) [L445] COND TRUE \read(systemActive) [L447] CALL processEnvironment() [L519] int tmp ; [L522] COND FALSE !(\read(pumpRunning)) [L537] CALL processEnvironment__wrappee__lowWaterSensor() [L493] int tmp ; [L496] COND FALSE !(\read(pumpRunning)) [L511] CALL processEnvironment__wrappee__highWaterSensor() [L467] int tmp ; [L470] COND TRUE ! pumpRunning [L472] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L997] int retValue_acc ; [L1000] COND TRUE waterLevel < 2 [L1001] retValue_acc = 1 [L1002] return (retValue_acc); [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L472] RET, EXPR isHighWaterLevel() [L472] tmp = isHighWaterLevel() [L474] COND FALSE !(\read(tmp)) [L480] FCALL processEnvironment__wrappee__base() [L511] RET processEnvironment__wrappee__highWaterSensor() [L537] RET processEnvironment__wrappee__lowWaterSensor() [L447] RET processEnvironment() [L453] CALL __utac_acc__Specification5_spec__3() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L787] RET, EXPR getWaterLevel() [L787] tmp = getWaterLevel() [L789] COND TRUE tmp != 2 [L791] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND FALSE !(\read(tmp___0)) [L453] RET __utac_acc__Specification5_spec__3() [L748] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 707]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L762] int switchedOnBeforeTS ; [L811] int cleanupTimeShifts = 4; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L885] int retValue_acc ; [L886] int tmp ; [L890] FCALL select_helpers() [L891] FCALL select_features() [L892] CALL, EXPR valid_product() [L683] int retValue_acc ; [L686] retValue_acc = 1 [L687] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L892] RET, EXPR valid_product() [L892] tmp = valid_product() [L894] COND TRUE \read(tmp) [L896] FCALL setup() [L897] CALL runTest() [L878] CALL __utac_acc__Specification5_spec__1() [L767] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L878] RET __utac_acc__Specification5_spec__1() [L879] CALL test() [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L748] CALL timeShift() [L436] CALL __utac_acc__Specification5_spec__2() [L776] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L776] RET, EXPR isPumpRunning() [L776] switchedOnBeforeTS = isPumpRunning() [L436] RET __utac_acc__Specification5_spec__2() [L438] COND FALSE !(\read(pumpRunning)) [L445] COND TRUE \read(systemActive) [L447] CALL processEnvironment() [L519] int tmp ; [L522] COND FALSE !(\read(pumpRunning)) [L537] CALL processEnvironment__wrappee__lowWaterSensor() [L493] int tmp ; [L496] COND FALSE !(\read(pumpRunning)) [L511] CALL processEnvironment__wrappee__highWaterSensor() [L467] int tmp ; [L470] COND TRUE ! pumpRunning [L472] CALL, EXPR isHighWaterLevel() [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L622] CALL, EXPR isHighWaterSensorDry() [L997] int retValue_acc ; [L1000] COND TRUE waterLevel < 2 [L1001] retValue_acc = 1 [L1002] return (retValue_acc); [L622] RET, EXPR isHighWaterSensorDry() [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L472] RET, EXPR isHighWaterLevel() [L472] tmp = isHighWaterLevel() [L474] COND FALSE !(\read(tmp)) [L480] FCALL processEnvironment__wrappee__base() [L511] RET processEnvironment__wrappee__highWaterSensor() [L537] RET processEnvironment__wrappee__lowWaterSensor() [L447] RET processEnvironment() [L453] CALL __utac_acc__Specification5_spec__3() [L782] int tmp ; [L783] int tmp___0 ; [L787] CALL, EXPR getWaterLevel() [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L787] RET, EXPR getWaterLevel() [L787] tmp = getWaterLevel() [L789] COND TRUE tmp != 2 [L791] CALL, EXPR isPumpRunning() [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L791] RET, EXPR isPumpRunning() [L791] tmp___0 = isPumpRunning() [L793] COND FALSE !(\read(tmp___0)) [L453] RET __utac_acc__Specification5_spec__3() [L748] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-01-10 07:48:35,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)