./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:58:07,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:58:07,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:58:07,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:58:07,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:58:07,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:58:07,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:58:07,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:58:07,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:58:07,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:58:07,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:58:07,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:58:07,450 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:58:07,451 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:58:07,451 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:58:07,452 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:58:07,453 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:58:07,453 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:58:07,453 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:58:07,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:58:07,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:58:07,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:58:07,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:58:07,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:58:07,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:58:07,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:58:07,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:58:07,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:58:07,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:58:07,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:58:07,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:58:07,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:58:07,456 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:58:07,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:58:07,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:58:07,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:58:07,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:58:07,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:58:07,459 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:58:07,459 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 [2024-10-12 00:58:07,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:58:07,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:58:07,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:58:07,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:58:07,691 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:58:07,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2024-10-12 00:58:08,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:58:09,141 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:58:09,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2024-10-12 00:58:09,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/27053bcb7/1d1db42704fb444f903f00b845ded96d/FLAGbfc99c3e5 [2024-10-12 00:58:09,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/27053bcb7/1d1db42704fb444f903f00b845ded96d [2024-10-12 00:58:09,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:58:09,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:58:09,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:58:09,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:58:09,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:58:09,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e101a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09, skipping insertion in model container [2024-10-12 00:58:09,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:58:09,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:58:09,836 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:58:09,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-12 00:58:09,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] [2024-10-12 00:58:09,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [453] [2024-10-12 00:58:09,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [525] [2024-10-12 00:58:09,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [727] [2024-10-12 00:58:09,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [736] [2024-10-12 00:58:09,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [831] [2024-10-12 00:58:09,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [927] [2024-10-12 00:58:09,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:58:09,926 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:58:09,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09 WrapperNode [2024-10-12 00:58:09,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:58:09,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:58:09,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:58:09,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:58:09,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,968 INFO L138 Inliner]: procedures = 54, calls = 100, calls flagged for inlining = 53, calls inlined = 82, statements flattened = 538 [2024-10-12 00:58:09,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:58:09,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:58:09,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:58:09,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:58:09,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,993 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:58:09,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:09,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:10,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:10,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:10,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:10,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:58:10,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:58:10,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:58:10,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:58:10,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (1/1) ... [2024-10-12 00:58:10,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:58:10,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:58:10,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:58:10,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:58:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:58:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:58:10,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:58:10,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:58:10,197 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:58:10,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:58:10,541 INFO L? ?]: Removed 121 outVars from TransFormulas that were not future-live. [2024-10-12 00:58:10,541 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:58:10,555 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:58:10,556 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 00:58:10,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:58:10 BoogieIcfgContainer [2024-10-12 00:58:10,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:58:10,557 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:58:10,557 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:58:10,561 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:58:10,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:58:10,563 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:58:09" (1/3) ... [2024-10-12 00:58:10,564 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a7a6bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:58:10, skipping insertion in model container [2024-10-12 00:58:10,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:58:10,564 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:58:09" (2/3) ... [2024-10-12 00:58:10,564 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a7a6bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:58:10, skipping insertion in model container [2024-10-12 00:58:10,564 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:58:10,564 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:58:10" (3/3) ... [2024-10-12 00:58:10,565 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2024-10-12 00:58:10,605 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:58:10,605 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:58:10,605 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:58:10,605 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:58:10,605 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:58:10,605 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:58:10,606 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:58:10,606 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:58:10,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:10,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-10-12 00:58:10,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:10,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:10,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:10,638 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:10,638 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:58:10,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:10,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-10-12 00:58:10,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:10,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:10,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:10,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:10,656 INFO L745 eck$LassoCheckResult]: Stem: 34#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 53#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 29#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 133#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 116#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 103#L914true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 93#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 44#L469-2true [2024-10-12 00:58:10,656 INFO L747 eck$LassoCheckResult]: Loop: 44#L469-2true assume !false; 136#L470true assume test_~splverifierCounter~0#1 < 4; 30#L471true havoc test_#t~nondet28#1;test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 88#L479true assume !(0 != test_~tmp~3#1); 36#L479-2true havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 148#L489true assume !(0 != test_~tmp___0~0#1); 64#L489-2true havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 56#L499true assume 0 != test_~tmp___2~0#1; 118#L505-2true assume { :begin_inline_timeShift } true; 12#L542true assume !(0 != ~pumpRunning~0); 101#L542-2true assume !(0 != ~systemActive~0); 127#L549-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 81#getWaterLevel_returnLabel#1true __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 47#L936true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 19#L936-1true havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 82#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 44#L469-2true [2024-10-12 00:58:10,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-12 00:58:10,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:10,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148117369] [2024-10-12 00:58:10,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:10,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:10,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:10,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:10,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash 169807750, now seen corresponding path program 1 times [2024-10-12 00:58:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531281138] [2024-10-12 00:58:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:10,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:10,796 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:10,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:10,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1525226826, now seen corresponding path program 1 times [2024-10-12 00:58:10,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:10,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534583123] [2024-10-12 00:58:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:58:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:58:11,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:58:11,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534583123] [2024-10-12 00:58:11,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534583123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:58:11,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:58:11,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:58:11,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651553503] [2024-10-12 00:58:11,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:58:11,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:58:11,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:58:11,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:58:11,111 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 162 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:58:11,239 INFO L93 Difference]: Finished difference Result 371 states and 485 transitions. [2024-10-12 00:58:11,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 371 states and 485 transitions. [2024-10-12 00:58:11,249 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 239 [2024-10-12 00:58:11,257 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 371 states to 341 states and 455 transitions. [2024-10-12 00:58:11,258 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 341 [2024-10-12 00:58:11,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 341 [2024-10-12 00:58:11,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 341 states and 455 transitions. [2024-10-12 00:58:11,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:58:11,264 INFO L218 hiAutomatonCegarLoop]: Abstraction has 341 states and 455 transitions. [2024-10-12 00:58:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states and 455 transitions. [2024-10-12 00:58:11,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 199. [2024-10-12 00:58:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 199 states have (on average 1.3316582914572865) internal successors, (265), 198 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2024-10-12 00:58:11,305 INFO L240 hiAutomatonCegarLoop]: Abstraction has 199 states and 265 transitions. [2024-10-12 00:58:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:58:11,309 INFO L425 stractBuchiCegarLoop]: Abstraction has 199 states and 265 transitions. [2024-10-12 00:58:11,310 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:58:11,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 199 states and 265 transitions. [2024-10-12 00:58:11,311 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2024-10-12 00:58:11,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:11,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:11,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,312 INFO L745 eck$LassoCheckResult]: Stem: 606#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 607#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 600#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 601#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 689#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 680#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 673#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 623#L469-2 [2024-10-12 00:58:11,313 INFO L747 eck$LassoCheckResult]: Loop: 623#L469-2 assume !false; 624#L470 assume test_~splverifierCounter~0#1 < 4; 602#L471 havoc test_#t~nondet28#1;test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 603#L479 assume !(0 != test_~tmp~3#1); 608#L479-2 havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 609#L489 assume !(0 != test_~tmp___0~0#1); 573#L489-2 havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 636#L499 assume 0 != test_~tmp___2~0#1; 615#L505-2 assume { :begin_inline_timeShift } true; 570#L542 assume !(0 != ~pumpRunning~0); 571#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 679#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 656#L574-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 552#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 553#L574-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 666#L600-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 667#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 665#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 627#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 583#L936-1 havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 584#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 623#L469-2 [2024-10-12 00:58:11,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-12 00:58:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910196735] [2024-10-12 00:58:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:11,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,336 INFO L85 PathProgramCache]: Analyzing trace with hash -94483728, now seen corresponding path program 1 times [2024-10-12 00:58:11,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634519807] [2024-10-12 00:58:11,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:58:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:58:11,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:58:11,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634519807] [2024-10-12 00:58:11,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634519807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:58:11,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:58:11,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:58:11,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391056894] [2024-10-12 00:58:11,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:58:11,371 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:58:11,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:58:11,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:58:11,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:58:11,372 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:58:11,500 INFO L93 Difference]: Finished difference Result 249 states and 316 transitions. [2024-10-12 00:58:11,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 316 transitions. [2024-10-12 00:58:11,503 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2024-10-12 00:58:11,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 316 transitions. [2024-10-12 00:58:11,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2024-10-12 00:58:11,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2024-10-12 00:58:11,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 316 transitions. [2024-10-12 00:58:11,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:58:11,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 249 states and 316 transitions. [2024-10-12 00:58:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 316 transitions. [2024-10-12 00:58:11,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-10-12 00:58:11,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2690763052208835) internal successors, (316), 248 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 316 transitions. [2024-10-12 00:58:11,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 249 states and 316 transitions. [2024-10-12 00:58:11,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:58:11,520 INFO L425 stractBuchiCegarLoop]: Abstraction has 249 states and 316 transitions. [2024-10-12 00:58:11,520 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:58:11,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 316 transitions. [2024-10-12 00:58:11,522 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 179 [2024-10-12 00:58:11,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:11,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:11,523 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,524 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,524 INFO L745 eck$LassoCheckResult]: Stem: 1057#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1058#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1051#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1052#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1153#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1142#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1132#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1133#L469-2 [2024-10-12 00:58:11,525 INFO L747 eck$LassoCheckResult]: Loop: 1133#L469-2 assume !false; 1233#L470 assume test_~splverifierCounter~0#1 < 4; 1232#L471 havoc test_#t~nondet28#1;test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1126#L479 assume !(0 != test_~tmp~3#1); 1060#L479-2 havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1061#L489 assume !(0 != test_~tmp___0~0#1); 1023#L489-2 havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1090#L499 assume 0 != test_~tmp___2~0#1; 1067#L505-2 assume { :begin_inline_timeShift } true; 1019#L542 assume !(0 != ~pumpRunning~0); 1020#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1141#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1110#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1111#L821-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1087#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1048#L702-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1049#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1140#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 1036#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1037#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1082#L574-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1123#L600-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1124#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1237#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 1080#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 1030#L936-1 havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1031#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1133#L469-2 [2024-10-12 00:58:11,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-10-12 00:58:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433500765] [2024-10-12 00:58:11,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:11,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 969587686, now seen corresponding path program 1 times [2024-10-12 00:58:11,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971844659] [2024-10-12 00:58:11,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:58:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:58:11,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:58:11,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971844659] [2024-10-12 00:58:11,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971844659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:58:11,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:58:11,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:58:11,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416069281] [2024-10-12 00:58:11,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:58:11,622 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:58:11,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:58:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:58:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:58:11,623 INFO L87 Difference]: Start difference. First operand 249 states and 316 transitions. cyclomatic complexity: 70 Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:58:11,700 INFO L93 Difference]: Finished difference Result 261 states and 328 transitions. [2024-10-12 00:58:11,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 261 states and 328 transitions. [2024-10-12 00:58:11,702 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2024-10-12 00:58:11,704 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 261 states to 261 states and 328 transitions. [2024-10-12 00:58:11,704 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 261 [2024-10-12 00:58:11,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 261 [2024-10-12 00:58:11,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 261 states and 328 transitions. [2024-10-12 00:58:11,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:58:11,709 INFO L218 hiAutomatonCegarLoop]: Abstraction has 261 states and 328 transitions. [2024-10-12 00:58:11,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states and 328 transitions. [2024-10-12 00:58:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-10-12 00:58:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 260 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 328 transitions. [2024-10-12 00:58:11,722 INFO L240 hiAutomatonCegarLoop]: Abstraction has 261 states and 328 transitions. [2024-10-12 00:58:11,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:58:11,726 INFO L425 stractBuchiCegarLoop]: Abstraction has 261 states and 328 transitions. [2024-10-12 00:58:11,726 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:58:11,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 261 states and 328 transitions. [2024-10-12 00:58:11,727 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 187 [2024-10-12 00:58:11,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:11,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:11,728 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,728 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,728 INFO L745 eck$LassoCheckResult]: Stem: 1574#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1575#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1568#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1569#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1672#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 1659#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1649#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1595#L469-2 [2024-10-12 00:58:11,728 INFO L747 eck$LassoCheckResult]: Loop: 1595#L469-2 assume !false; 1596#L470 assume test_~splverifierCounter~0#1 < 4; 1570#L471 havoc test_#t~nondet28#1;test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1571#L479 assume !(0 != test_~tmp~3#1); 1577#L479-2 havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1578#L489 assume !(0 != test_~tmp___0~0#1); 1540#L489-2 havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1610#L499 assume 0 != test_~tmp___2~0#1; 1584#L505-2 assume { :begin_inline_timeShift } true; 1536#L542 assume !(0 != ~pumpRunning~0); 1537#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1658#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1630#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 1631#L821-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~10#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 1607#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1565#L702-3 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1566#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1657#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 1553#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1554#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1601#L574-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1642#L600-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1643#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1754#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 1752#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 1750#L936-1 havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1641#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1595#L469-2 [2024-10-12 00:58:11,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-10-12 00:58:11,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943260057] [2024-10-12 00:58:11,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:11,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1227753124, now seen corresponding path program 1 times [2024-10-12 00:58:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357225976] [2024-10-12 00:58:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:58:11,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:58:11,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:58:11,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357225976] [2024-10-12 00:58:11,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357225976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:58:11,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:58:11,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:58:11,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133862799] [2024-10-12 00:58:11,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:58:11,817 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:58:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:58:11,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:58:11,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:58:11,817 INFO L87 Difference]: Start difference. First operand 261 states and 328 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:58:11,901 INFO L93 Difference]: Finished difference Result 279 states and 346 transitions. [2024-10-12 00:58:11,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 279 states and 346 transitions. [2024-10-12 00:58:11,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2024-10-12 00:58:11,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 279 states to 279 states and 346 transitions. [2024-10-12 00:58:11,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 279 [2024-10-12 00:58:11,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 279 [2024-10-12 00:58:11,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 279 states and 346 transitions. [2024-10-12 00:58:11,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:58:11,905 INFO L218 hiAutomatonCegarLoop]: Abstraction has 279 states and 346 transitions. [2024-10-12 00:58:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states and 346 transitions. [2024-10-12 00:58:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2024-10-12 00:58:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2401433691756272) internal successors, (346), 278 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:58:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 346 transitions. [2024-10-12 00:58:11,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 279 states and 346 transitions. [2024-10-12 00:58:11,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:58:11,915 INFO L425 stractBuchiCegarLoop]: Abstraction has 279 states and 346 transitions. [2024-10-12 00:58:11,916 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:58:11,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 346 transitions. [2024-10-12 00:58:11,917 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 199 [2024-10-12 00:58:11,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:58:11,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:58:11,919 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,919 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:58:11,919 INFO L745 eck$LassoCheckResult]: Stem: 2119#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2120#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2113#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2114#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2222#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 2209#L914 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2197#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2198#L469-2 [2024-10-12 00:58:11,919 INFO L747 eck$LassoCheckResult]: Loop: 2198#L469-2 assume !false; 2314#L470 assume test_~splverifierCounter~0#1 < 4; 2315#L471 havoc test_#t~nondet28#1;test_~tmp~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2331#L479 assume !(0 != test_~tmp~3#1); 2329#L479-2 havoc test_#t~nondet29#1;test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2327#L489 assume !(0 != test_~tmp___0~0#1); 2325#L489-2 havoc test_#t~nondet30#1;test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2156#L499 assume 0 != test_~tmp___2~0#1; 2129#L505-2 assume { :begin_inline_timeShift } true; 2083#L542 assume !(0 != ~pumpRunning~0); 2084#L542-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2208#L600 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2178#L574-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1; 2179#L821-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1; 2240#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 2268#L702-3 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2267#L702-5 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2265#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret32#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret32#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1; 2264#L578-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2146#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2147#L574-3 havoc processEnvironment__wrappee__highWaterSensor_#t~ret32#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2190#L600-1 havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 2191#L549-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~8#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 2188#getWaterLevel_returnLabel#1 __utac_acc__Specification4_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~8#1 := __utac_acc__Specification4_spec__1_#t~ret50#1;havoc __utac_acc__Specification4_spec__1_#t~ret50#1; 2189#L936 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~8#1); 2317#L936-1 havoc __utac_acc__Specification4_spec__1_#t~ret50#1, __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_~tmp~8#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2316#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2198#L469-2 [2024-10-12 00:58:11,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-10-12 00:58:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512471843] [2024-10-12 00:58:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:11,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1980704936, now seen corresponding path program 1 times [2024-10-12 00:58:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467904873] [2024-10-12 00:58:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:58:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1938974620, now seen corresponding path program 1 times [2024-10-12 00:58:11,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:58:11,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015047675] [2024-10-12 00:58:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:58:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:58:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:11,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:58:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:12,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:58:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:58:12,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:58:12 BoogieIcfgContainer [2024-10-12 00:58:12,685 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:58:12,687 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:58:12,687 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:58:12,687 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:58:12,688 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:58:10" (3/4) ... [2024-10-12 00:58:12,689 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-12 00:58:12,728 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:58:12,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:58:12,729 INFO L158 Benchmark]: Toolchain (without parser) took 3197.55ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 87.3MB in the beginning and 77.7MB in the end (delta: 9.6MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,729 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:58:12,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.22ms. Allocated memory is still 165.7MB. Free memory was 87.1MB in the beginning and 130.1MB in the end (delta: -43.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.18ms. Allocated memory is still 165.7MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,729 INFO L158 Benchmark]: Boogie Preprocessor took 38.97ms. Allocated memory is still 165.7MB. Free memory was 127.0MB in the beginning and 122.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,730 INFO L158 Benchmark]: RCFGBuilder took 547.97ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 111.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,730 INFO L158 Benchmark]: BuchiAutomizer took 2128.15ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 111.1MB in the beginning and 79.8MB in the end (delta: 31.4MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,730 INFO L158 Benchmark]: Witness Printer took 41.36ms. Allocated memory is still 199.2MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:58:12,731 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.22ms. Allocated memory is still 165.7MB. Free memory was 87.1MB in the beginning and 130.1MB in the end (delta: -43.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.18ms. Allocated memory is still 165.7MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.97ms. Allocated memory is still 165.7MB. Free memory was 127.0MB in the beginning and 122.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 547.97ms. Allocated memory is still 165.7MB. Free memory was 122.8MB in the beginning and 111.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 2128.15ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 111.1MB in the beginning and 79.8MB in the end (delta: 31.4MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Witness Printer took 41.36ms. Allocated memory is still 199.2MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [87] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [453] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [525] - GenericResultAtLocation [Line: 727]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [727] - GenericResultAtLocation [Line: 736]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [736] - GenericResultAtLocation [Line: 831]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [831] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [927] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 142 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 521 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 521 mSDsluCounter, 2413 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1654 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 759 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 469]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int pumpRunning = 0; [L535] int systemActive = 1; [L738] int waterLevel = 1; [L739] int methaneLevelCritical = 0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L460] int splverifierCounter ; [L461] int tmp ; [L462] int tmp___0 ; [L463] int tmp___1 ; [L464] int tmp___2 ; [L467] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L469] COND TRUE 1 [L471] COND TRUE splverifierCounter < 4 [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) [L514] CALL timeShift() [L542] COND FALSE !(\read(pumpRunning)) [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; [L600] COND FALSE !(\read(pumpRunning)) [L615] CALL processEnvironment__wrappee__highWaterSensor() [L571] int tmp ; [L574] COND TRUE ! pumpRunning [L576] CALL, EXPR isHighWaterLevel() [L694] int retValue_acc ; [L695] int tmp ; [L696] int tmp___0 ; [L700] CALL, EXPR isHighWaterSensorDry() [L818] int retValue_acc ; [L821] COND TRUE waterLevel < 2 [L822] retValue_acc = 1 [L823] return (retValue_acc); [L700] RET, EXPR isHighWaterSensorDry() [L700] tmp = isHighWaterSensorDry() [L702] COND TRUE \read(tmp) [L703] tmp___0 = 0 [L707] retValue_acc = tmp___0 [L708] return (retValue_acc); [L576] RET, EXPR isHighWaterLevel() [L576] tmp = isHighWaterLevel() [L578] COND FALSE !(\read(tmp)) [L584] FCALL processEnvironment__wrappee__base() [L615] RET processEnvironment__wrappee__highWaterSensor() [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) [L557] RET __utac_acc__Specification4_spec__1() [L514] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 469]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int pumpRunning = 0; [L535] int systemActive = 1; [L738] int waterLevel = 1; [L739] int methaneLevelCritical = 0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L460] int splverifierCounter ; [L461] int tmp ; [L462] int tmp___0 ; [L463] int tmp___1 ; [L464] int tmp___2 ; [L467] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L469] COND TRUE 1 [L471] COND TRUE splverifierCounter < 4 [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) [L514] CALL timeShift() [L542] COND FALSE !(\read(pumpRunning)) [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; [L600] COND FALSE !(\read(pumpRunning)) [L615] CALL processEnvironment__wrappee__highWaterSensor() [L571] int tmp ; [L574] COND TRUE ! pumpRunning [L576] CALL, EXPR isHighWaterLevel() [L694] int retValue_acc ; [L695] int tmp ; [L696] int tmp___0 ; [L700] CALL, EXPR isHighWaterSensorDry() [L818] int retValue_acc ; [L821] COND TRUE waterLevel < 2 [L822] retValue_acc = 1 [L823] return (retValue_acc); [L700] RET, EXPR isHighWaterSensorDry() [L700] tmp = isHighWaterSensorDry() [L702] COND TRUE \read(tmp) [L703] tmp___0 = 0 [L707] retValue_acc = tmp___0 [L708] return (retValue_acc); [L576] RET, EXPR isHighWaterLevel() [L576] tmp = isHighWaterLevel() [L578] COND FALSE !(\read(tmp)) [L584] FCALL processEnvironment__wrappee__base() [L615] RET processEnvironment__wrappee__highWaterSensor() [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) [L557] RET __utac_acc__Specification4_spec__1() [L514] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-12 00:58:12,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)