./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product49.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_spec2_product49.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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 07:46:14,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:46:14,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:46:14,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:46:14,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:46:14,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:46:14,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:46:14,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:46:14,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:46:14,652 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:46:14,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:46:14,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:46:14,653 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:46:14,653 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:46:14,654 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:46:14,654 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:46:14,654 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:46:14,654 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:46:14,654 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:46:14,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:46:14,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:46:14,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:46:14,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:46:14,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:46:14,656 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:46:14,656 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 -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2025-01-10 07:46:14,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:46:14,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:46:14,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:46:14,893 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:46:14,894 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:46:14,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2025-01-10 07:46:16,120 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ba8c5a25/6b0f1148559d47d9abbf98cc31f1113c/FLAG54be9c2fd [2025-01-10 07:46:16,386 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:46:16,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2025-01-10 07:46:16,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ba8c5a25/6b0f1148559d47d9abbf98cc31f1113c/FLAG54be9c2fd [2025-01-10 07:46:16,680 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ba8c5a25/6b0f1148559d47d9abbf98cc31f1113c [2025-01-10 07:46:16,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:46:16,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:46:16,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:46:16,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:46:16,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:46:16,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:46:16" (1/1) ... [2025-01-10 07:46:16,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcd15b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:16, skipping insertion in model container [2025-01-10 07:46:16,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:46:16" (1/1) ... [2025-01-10 07:46:16,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:46:16,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:46:16,958 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:46:16,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [155] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [264] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [305] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [370] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [569] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [935] [2025-01-10 07:46:16,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [944] [2025-01-10 07:46:17,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:46:17,027 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:46:17,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17 WrapperNode [2025-01-10 07:46:17,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:46:17,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:46:17,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:46:17,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:46:17,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,076 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 53, calls inlined = 81, statements flattened = 559 [2025-01-10 07:46:17,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:46:17,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:46:17,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:46:17,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:46:17,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,112 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 07:46:17,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:46:17,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:46:17,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:46:17,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:46:17,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (1/1) ... [2025-01-10 07:46:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:46:17,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:46:17,164 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 07:46:17,167 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 07:46:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:46:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:46:17,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:46:17,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:46:17,250 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:46:17,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:46:17,574 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2025-01-10 07:46:17,574 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:46:17,588 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:46:17,590 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-10 07:46:17,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:46:17 BoogieIcfgContainer [2025-01-10 07:46:17,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:46:17,591 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:46:17,591 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:46:17,595 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:46:17,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:46:17,596 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:46:16" (1/3) ... [2025-01-10 07:46:17,597 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c0895b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:46:17, skipping insertion in model container [2025-01-10 07:46:17,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:46:17,597 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:46:17" (2/3) ... [2025-01-10 07:46:17,597 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48c0895b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:46:17, skipping insertion in model container [2025-01-10 07:46:17,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:46:17,597 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:46:17" (3/3) ... [2025-01-10 07:46:17,598 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2025-01-10 07:46:17,634 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:46:17,634 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:46:17,635 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:46:17,635 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:46:17,635 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:46:17,635 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:46:17,635 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:46:17,635 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:46:17,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 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 07:46:17,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2025-01-10 07:46:17,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:46:17,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:46:17,668 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:17,668 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:17,668 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:46:17,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 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 07:46:17,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2025-01-10 07:46:17,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:46:17,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:46:17,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:17,680 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:17,685 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:46:17,685 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:46:17,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:17,689 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2025-01-10 07:46:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:17,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154556277] [2025-01-10 07:46:17,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:17,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:17,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:17,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:17,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:17,762 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:17,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:17,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:17,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:17,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:17,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:17,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:17,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1120801252, now seen corresponding path program 1 times [2025-01-10 07:46:17,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:17,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484551203] [2025-01-10 07:46:17,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:17,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:17,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 07:46:17,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 07:46:17,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:17,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:17,801 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:17,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 07:46:17,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 07:46:17,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:17,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:17,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:17,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1264583661, now seen corresponding path program 1 times [2025-01-10 07:46:17,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:17,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400845113] [2025-01-10 07:46:17,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:17,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:17,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 07:46:17,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 07:46:17,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:17,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:46:18,008 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 07:46:18,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:46:18,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400845113] [2025-01-10 07:46:18,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400845113] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:46:18,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:46:18,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:46:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066987673] [2025-01-10 07:46:18,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:46:18,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:46:18,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 07:46:18,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 07:46:18,108 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:46:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:46:18,173 INFO L93 Difference]: Finished difference Result 161 states and 213 transitions. [2025-01-10 07:46:18,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 213 transitions. [2025-01-10 07:46:18,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2025-01-10 07:46:18,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 151 states and 203 transitions. [2025-01-10 07:46:18,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151 [2025-01-10 07:46:18,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151 [2025-01-10 07:46:18,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 151 states and 203 transitions. [2025-01-10 07:46:18,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:46:18,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 151 states and 203 transitions. [2025-01-10 07:46:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states and 203 transitions. [2025-01-10 07:46:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2025-01-10 07:46:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 151 states have (on average 1.3443708609271523) internal successors, (203), 150 states have internal predecessors, (203), 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 07:46:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 203 transitions. [2025-01-10 07:46:18,226 INFO L240 hiAutomatonCegarLoop]: Abstraction has 151 states and 203 transitions. [2025-01-10 07:46:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 07:46:18,230 INFO L432 stractBuchiCegarLoop]: Abstraction has 151 states and 203 transitions. [2025-01-10 07:46:18,232 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:46:18,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 203 transitions. [2025-01-10 07:46:18,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2025-01-10 07:46:18,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:46:18,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:46:18,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:18,239 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] [2025-01-10 07:46:18,239 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:46:18,239 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:46:18,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,240 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2025-01-10 07:46:18,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292442683] [2025-01-10 07:46:18,240 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:46:18,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,246 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:18,251 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:18,253 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:46:18,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,253 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:18,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:18,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:18,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:18,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1824410519, now seen corresponding path program 1 times [2025-01-10 07:46:18,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240579510] [2025-01-10 07:46:18,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:18,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 07:46:18,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 07:46:18,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:46:18,283 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 07:46:18,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:46:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240579510] [2025-01-10 07:46:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240579510] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:46:18,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:46:18,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:46:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213097162] [2025-01-10 07:46:18,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:46:18,284 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:46:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:46:18,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:46:18,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:46:18,285 INFO L87 Difference]: Start difference. First operand 151 states and 203 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 07:46:18,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:46:18,357 INFO L93 Difference]: Finished difference Result 207 states and 269 transitions. [2025-01-10 07:46:18,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 207 states and 269 transitions. [2025-01-10 07:46:18,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2025-01-10 07:46:18,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 207 states to 207 states and 269 transitions. [2025-01-10 07:46:18,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2025-01-10 07:46:18,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2025-01-10 07:46:18,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 269 transitions. [2025-01-10 07:46:18,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:46:18,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 207 states and 269 transitions. [2025-01-10 07:46:18,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 269 transitions. [2025-01-10 07:46:18,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2025-01-10 07:46:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 207 states have (on average 1.2995169082125604) internal successors, (269), 206 states have internal predecessors, (269), 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 07:46:18,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 269 transitions. [2025-01-10 07:46:18,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 207 states and 269 transitions. [2025-01-10 07:46:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:46:18,368 INFO L432 stractBuchiCegarLoop]: Abstraction has 207 states and 269 transitions. [2025-01-10 07:46:18,368 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:46:18,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 269 transitions. [2025-01-10 07:46:18,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 142 [2025-01-10 07:46:18,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:46:18,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:46:18,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:18,370 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] [2025-01-10 07:46:18,370 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:46:18,371 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#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~ret27#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1;" "isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1;" "assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~2#1 := 1;" "isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#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~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:46:18,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,371 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2025-01-10 07:46:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819740023] [2025-01-10 07:46:18,371 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:46:18,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,376 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:18,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:18,382 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 07:46:18,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,382 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:18,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:18,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:18,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:18,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash -39787443, now seen corresponding path program 1 times [2025-01-10 07:46:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871245196] [2025-01-10 07:46:18,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 07:46:18,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 07:46:18,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:46:18,453 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 07:46:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:46:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871245196] [2025-01-10 07:46:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871245196] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:46:18,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:46:18,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 07:46:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430266989] [2025-01-10 07:46:18,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:46:18,454 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:46:18,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:46:18,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 07:46:18,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 07:46:18,454 INFO L87 Difference]: Start difference. First operand 207 states and 269 transitions. cyclomatic complexity: 64 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:46:18,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:46:18,525 INFO L93 Difference]: Finished difference Result 219 states and 281 transitions. [2025-01-10 07:46:18,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 281 transitions. [2025-01-10 07:46:18,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2025-01-10 07:46:18,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 281 transitions. [2025-01-10 07:46:18,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2025-01-10 07:46:18,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2025-01-10 07:46:18,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 281 transitions. [2025-01-10 07:46:18,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:46:18,533 INFO L218 hiAutomatonCegarLoop]: Abstraction has 219 states and 281 transitions. [2025-01-10 07:46:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 281 transitions. [2025-01-10 07:46:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2025-01-10 07:46:18,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.2831050228310503) internal successors, (281), 218 states have internal predecessors, (281), 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 07:46:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 281 transitions. [2025-01-10 07:46:18,544 INFO L240 hiAutomatonCegarLoop]: Abstraction has 219 states and 281 transitions. [2025-01-10 07:46:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 07:46:18,546 INFO L432 stractBuchiCegarLoop]: Abstraction has 219 states and 281 transitions. [2025-01-10 07:46:18,546 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 07:46:18,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 281 transitions. [2025-01-10 07:46:18,547 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 150 [2025-01-10 07:46:18,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:46:18,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:46:18,549 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:46:18,550 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] [2025-01-10 07:46:18,550 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#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~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret4#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0;" "assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:46:18,550 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet12#1;test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1;" "assume !(0 != test_~tmp~2#1);" "havoc test_#t~nondet13#1;test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet14#1;test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#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~ret27#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1;" "isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#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~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1;" "__utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1;" "assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0;" "havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:46:18,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,551 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2025-01-10 07:46:18,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205869523] [2025-01-10 07:46:18,551 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 07:46:18,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,556 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 8 statements into 2 equivalence classes. [2025-01-10 07:46:18,560 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 07:46:18,561 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 07:46:18,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,561 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:18,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:18,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:18,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -297952881, now seen corresponding path program 1 times [2025-01-10 07:46:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476875332] [2025-01-10 07:46:18,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:18,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 07:46:18,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 07:46:18,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,576 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:18,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 07:46:18,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 07:46:18,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:18,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:46:18,586 INFO L85 PathProgramCache]: Analyzing trace with hash 400292664, now seen corresponding path program 1 times [2025-01-10 07:46:18,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:46:18,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378279529] [2025-01-10 07:46:18,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:46:18,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:46:18,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 07:46:18,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 07:46:18,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,603 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:18,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 07:46:18,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 07:46:18,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:18,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:18,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:46:19,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:19,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:19,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:19,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:19,287 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:46:19,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 07:46:19,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 07:46:19,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:46:19,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:46:19,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:46:19 BoogieIcfgContainer [2025-01-10 07:46:19,357 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:46:19,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:46:19,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:46:19,358 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:46:19,358 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:46:17" (3/4) ... [2025-01-10 07:46:19,359 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 07:46:19,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 07:46:19,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:46:19,388 INFO L158 Benchmark]: Toolchain (without parser) took 2705.33ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 125.0MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:46:19,388 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:46:19,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.07ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 105.6MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:46:19,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.76ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 102.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:46:19,389 INFO L158 Benchmark]: Boogie Preprocessor took 55.02ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 99.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:46:19,389 INFO L158 Benchmark]: RCFGBuilder took 458.29ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 72.6MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:46:19,389 INFO L158 Benchmark]: BuchiAutomizer took 1765.49ms. Allocated memory is still 167.8MB. Free memory was 72.6MB in the beginning and 129.9MB in the end (delta: -57.3MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2025-01-10 07:46:19,390 INFO L158 Benchmark]: Witness Printer took 30.39ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 125.0MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:46:19,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.07ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 105.6MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.76ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 102.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.02ms. Allocated memory is still 167.8MB. Free memory was 102.3MB in the beginning and 99.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 458.29ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 72.6MB in the end (delta: 26.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1765.49ms. Allocated memory is still 167.8MB. Free memory was 72.6MB in the beginning and 129.9MB in the end (delta: -57.3MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 30.39ms. Allocated memory is still 167.8MB. Free memory was 129.9MB in the beginning and 125.0MB in the end (delta: 4.9MB). 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,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [155] - GenericResultAtLocation [Line: 264]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [264] - GenericResultAtLocation [Line: 305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [305] - GenericResultAtLocation [Line: 370]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [370] - GenericResultAtLocation [Line: 569]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [569] - GenericResultAtLocation [Line: 935]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [935] - GenericResultAtLocation [Line: 944]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [944] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 219 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 347 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 347 mSDsluCounter, 1454 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 844 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 610 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 318]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L162] int waterLevel = 1; [L163] int methaneLevelCritical = 0; [L267] int methAndRunningLastTime ; [L373] int pumpRunning = 0; [L374] int systemActive = 1; [L739] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L971] int retValue_acc ; [L974] retValue_acc = 1 [L975] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L272] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L359] CALL timeShift() [L380] COND FALSE !(\read(pumpRunning)) [L387] COND TRUE \read(systemActive) [L389] CALL processEnvironment() [L435] int tmp ; [L438] COND FALSE !(\read(pumpRunning)) [L453] CALL processEnvironment__wrappee__highWaterSensor() [L409] int tmp ; [L412] COND TRUE ! pumpRunning [L414] CALL, EXPR isHighWaterLevel() [L532] int retValue_acc ; [L533] int tmp ; [L534] int tmp___0 ; [L538] CALL, EXPR isHighWaterSensorDry() [L242] int retValue_acc ; [L245] COND TRUE waterLevel < 2 [L246] retValue_acc = 1 [L247] return (retValue_acc); [L538] RET, EXPR isHighWaterSensorDry() [L538] tmp = isHighWaterSensorDry() [L540] COND TRUE \read(tmp) [L541] tmp___0 = 0 [L545] retValue_acc = tmp___0 [L546] return (retValue_acc); [L414] RET, EXPR isHighWaterLevel() [L414] tmp = isHighWaterLevel() [L416] COND FALSE !(\read(tmp)) [L422] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment__wrappee__highWaterSensor() [L389] RET processEnvironment() [L395] CALL __utac_acc__Specification2_spec__2() [L277] int tmp ; [L278] int tmp___0 ; [L282] CALL, EXPR isMethaneLevelCritical() [L201] int retValue_acc ; [L204] retValue_acc = methaneLevelCritical [L205] return (retValue_acc); [L282] RET, EXPR isMethaneLevelCritical() [L282] tmp = isMethaneLevelCritical() [L284] COND FALSE !(\read(tmp)) [L300] methAndRunningLastTime = 0 [L395] RET __utac_acc__Specification2_spec__2() [L359] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 318]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L162] int waterLevel = 1; [L163] int methaneLevelCritical = 0; [L267] int methAndRunningLastTime ; [L373] int pumpRunning = 0; [L374] int systemActive = 1; [L739] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L971] int retValue_acc ; [L974] retValue_acc = 1 [L975] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L272] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L359] CALL timeShift() [L380] COND FALSE !(\read(pumpRunning)) [L387] COND TRUE \read(systemActive) [L389] CALL processEnvironment() [L435] int tmp ; [L438] COND FALSE !(\read(pumpRunning)) [L453] CALL processEnvironment__wrappee__highWaterSensor() [L409] int tmp ; [L412] COND TRUE ! pumpRunning [L414] CALL, EXPR isHighWaterLevel() [L532] int retValue_acc ; [L533] int tmp ; [L534] int tmp___0 ; [L538] CALL, EXPR isHighWaterSensorDry() [L242] int retValue_acc ; [L245] COND TRUE waterLevel < 2 [L246] retValue_acc = 1 [L247] return (retValue_acc); [L538] RET, EXPR isHighWaterSensorDry() [L538] tmp = isHighWaterSensorDry() [L540] COND TRUE \read(tmp) [L541] tmp___0 = 0 [L545] retValue_acc = tmp___0 [L546] return (retValue_acc); [L414] RET, EXPR isHighWaterLevel() [L414] tmp = isHighWaterLevel() [L416] COND FALSE !(\read(tmp)) [L422] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment__wrappee__highWaterSensor() [L389] RET processEnvironment() [L395] CALL __utac_acc__Specification2_spec__2() [L277] int tmp ; [L278] int tmp___0 ; [L282] CALL, EXPR isMethaneLevelCritical() [L201] int retValue_acc ; [L204] retValue_acc = methaneLevelCritical [L205] return (retValue_acc); [L282] RET, EXPR isMethaneLevelCritical() [L282] tmp = isMethaneLevelCritical() [L284] COND FALSE !(\read(tmp)) [L300] methAndRunningLastTime = 0 [L395] RET __utac_acc__Specification2_spec__2() [L359] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-01-10 07:46:19,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)