./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:48:35,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:48:35,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-23 02:48:35,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:48:35,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:48:35,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:48:35,913 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:48:35,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:48:35,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:48:35,913 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:48:35,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:48:35,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:48:35,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:48:35,915 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 02:48:35,915 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 02:48:35,915 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 02:48:35,915 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 02:48:35,916 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 02:48:35,916 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 02:48:35,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:48:35,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 02:48:35,917 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:48:35,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:48:35,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:48:35,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:48:35,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 02:48:35,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 02:48:35,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 02:48:35,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:48:35,919 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:48:35,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:48:35,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:48:35,920 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 02:48:35,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:48:35,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:48:35,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:48:35,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:48:35,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:48:35,921 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 02:48:35,922 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa0eab3945757815cbe114f72b31b9c97b3f41e20a7d5f245c817ae82afdf9aa [2024-11-23 02:48:36,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:48:36,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:48:36,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:48:36,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:48:36,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:48:36,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2024-11-23 02:48:37,453 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:48:37,674 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:48:37,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product56.cil.c [2024-11-23 02:48:37,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/545ed26b6/958f8605543443899fb2ba5c48956b77/FLAG3d80494b2 [2024-11-23 02:48:37,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/545ed26b6/958f8605543443899fb2ba5c48956b77 [2024-11-23 02:48:37,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:48:37,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:48:37,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:48:37,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:48:37,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:48:37,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:37" (1/1) ... [2024-11-23 02:48:37,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26346fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:37, skipping insertion in model container [2024-11-23 02:48:37,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:37" (1/1) ... [2024-11-23 02:48:37,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:48:38,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:48:38,058 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:48:38,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-23 02:48:38,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [535] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [827] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] [2024-11-23 02:48:38,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [935] [2024-11-23 02:48:38,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:48:38,159 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:48:38,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38 WrapperNode [2024-11-23 02:48:38,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:48:38,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:48:38,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:48:38,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:48:38,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,218 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 60, calls inlined = 144, statements flattened = 977 [2024-11-23 02:48:38,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:48:38,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:48:38,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:48:38,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:48:38,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,256 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 02:48:38,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:48:38,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:48:38,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:48:38,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:48:38,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (1/1) ... [2024-11-23 02:48:38,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 02:48:38,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:48:38,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 02:48:38,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 02:48:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:48:38,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:48:38,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:48:38,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:48:38,429 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:48:38,432 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:48:38,959 INFO L? ?]: Removed 235 outVars from TransFormulas that were not future-live. [2024-11-23 02:48:38,960 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:48:38,979 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:48:38,979 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 02:48:38,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:38 BoogieIcfgContainer [2024-11-23 02:48:38,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:48:38,981 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 02:48:38,981 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 02:48:38,984 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 02:48:38,984 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:38,984 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:48:37" (1/3) ... [2024-11-23 02:48:38,985 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56445200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:48:38, skipping insertion in model container [2024-11-23 02:48:38,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:38,985 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:38" (2/3) ... [2024-11-23 02:48:38,986 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56445200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:48:38, skipping insertion in model container [2024-11-23 02:48:38,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 02:48:38,986 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:38" (3/3) ... [2024-11-23 02:48:38,987 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product56.cil.c [2024-11-23 02:48:39,038 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 02:48:39,038 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 02:48:39,038 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 02:48:39,038 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 02:48:39,038 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 02:48:39,038 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 02:48:39,038 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 02:48:39,039 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 02:48:39,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 282 states, 281 states have (on average 1.3701067615658362) internal successors, (385), 281 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:39,068 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2024-11-23 02:48:39,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:39,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:39,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,075 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 02:48:39,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 282 states, 281 states have (on average 1.3701067615658362) internal successors, (385), 281 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:39,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2024-11-23 02:48:39,081 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:39,081 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:39,082 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,082 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,086 INFO L745 eck$LassoCheckResult]: Stem: 178#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 190#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 32#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 256#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 99#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 232#L1019true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 78#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 118#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 68#L839-2true [2024-11-23 02:48:39,086 INFO L747 eck$LassoCheckResult]: Loop: 68#L839-2true assume !false; 116#L840true assume test_~splverifierCounter~0#1 < 4; 230#L841true havoc test_#t~nondet48#1;test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 140#L849true assume !(0 != test_~tmp~9#1); 29#L849-2true havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 131#L859true assume !(0 != test_~tmp___0~3#1); 217#L859-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 57#L869true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 59#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 205#L877-2true assume { :begin_inline_timeShift } true; 163#L589true assume !(0 != ~pumpRunning~0); 276#L589-2true assume !(0 != ~systemActive~0); 241#L596-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 221#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 283#L554true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 156#L554-1true havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 213#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 68#L839-2true [2024-11-23 02:48:39,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-23 02:48:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668417096] [2024-11-23 02:48:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:39,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:39,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:39,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:39,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:39,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1637636981, now seen corresponding path program 1 times [2024-11-23 02:48:39,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:39,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466001810] [2024-11-23 02:48:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:39,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:48:39,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:48:39,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:48:39,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466001810] [2024-11-23 02:48:39,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466001810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:48:39,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:48:39,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:48:39,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054485531] [2024-11-23 02:48:39,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:48:39,488 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:48:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:48:39,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:48:39,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:48:39,537 INFO L87 Difference]: Start difference. First operand has 282 states, 281 states have (on average 1.3701067615658362) internal successors, (385), 281 states have internal predecessors, (385), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:48:39,665 INFO L93 Difference]: Finished difference Result 542 states and 730 transitions. [2024-11-23 02:48:39,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 542 states and 730 transitions. [2024-11-23 02:48:39,684 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 356 [2024-11-23 02:48:39,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 542 states to 522 states and 709 transitions. [2024-11-23 02:48:39,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 522 [2024-11-23 02:48:39,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 522 [2024-11-23 02:48:39,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 709 transitions. [2024-11-23 02:48:39,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:48:39,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 522 states and 709 transitions. [2024-11-23 02:48:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 709 transitions. [2024-11-23 02:48:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 519. [2024-11-23 02:48:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 519 states have (on average 1.3583815028901733) internal successors, (705), 518 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 705 transitions. [2024-11-23 02:48:39,792 INFO L240 hiAutomatonCegarLoop]: Abstraction has 519 states and 705 transitions. [2024-11-23 02:48:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:48:39,799 INFO L425 stractBuchiCegarLoop]: Abstraction has 519 states and 705 transitions. [2024-11-23 02:48:39,800 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 02:48:39,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 519 states and 705 transitions. [2024-11-23 02:48:39,806 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 353 [2024-11-23 02:48:39,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:39,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:39,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:39,814 INFO L745 eck$LassoCheckResult]: Stem: 1086#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1087#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 896#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 897#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1004#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1005#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 970#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 971#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 957#L839-2 [2024-11-23 02:48:39,814 INFO L747 eck$LassoCheckResult]: Loop: 957#L839-2 assume !false; 958#L840 assume test_~splverifierCounter~0#1 < 4; 1022#L841 havoc test_#t~nondet48#1;test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 1110#L849 assume !(0 != test_~tmp~9#1); 1209#L849-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1035#L859 assume !(0 != test_~tmp___0~3#1); 1037#L859-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 942#L869 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 875#L877 assume !(0 != test_~tmp___1~0#1); 876#L877-2 assume { :begin_inline_timeShift } true; 1072#L589 assume !(0 != ~pumpRunning~0); 954#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1124#L673 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~7#1;havoc isMethaneAlarm_~retValue_acc~7#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1168#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret37#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7#1 := isMethaneAlarm_#t~ret37#1;havoc isMethaneAlarm_#t~ret37#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~7#1; 1167#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret36#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret37#1, isMethaneAlarm_~retValue_acc~7#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1166#L677 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 968#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 969#L673-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 1115#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1106#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 1107#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 1051#L554-1 havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1063#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 957#L839-2 [2024-11-23 02:48:39,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-23 02:48:39,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:39,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143093888] [2024-11-23 02:48:39,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:48:39,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:39,847 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:48:39,847 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:48:39,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:39,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:39,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:39,880 INFO L85 PathProgramCache]: Analyzing trace with hash -92246398, now seen corresponding path program 1 times [2024-11-23 02:48:39,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:39,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997621031] [2024-11-23 02:48:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:39,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:48:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:48:39,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:48:39,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997621031] [2024-11-23 02:48:39,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997621031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:48:39,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:48:39,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:48:39,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534675150] [2024-11-23 02:48:39,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:48:39,953 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:48:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:48:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:48:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:48:39,954 INFO L87 Difference]: Start difference. First operand 519 states and 705 transitions. cyclomatic complexity: 189 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:48:40,111 INFO L93 Difference]: Finished difference Result 547 states and 708 transitions. [2024-11-23 02:48:40,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 547 states and 708 transitions. [2024-11-23 02:48:40,114 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 383 [2024-11-23 02:48:40,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 547 states to 547 states and 708 transitions. [2024-11-23 02:48:40,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 547 [2024-11-23 02:48:40,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 547 [2024-11-23 02:48:40,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 547 states and 708 transitions. [2024-11-23 02:48:40,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:48:40,127 INFO L218 hiAutomatonCegarLoop]: Abstraction has 547 states and 708 transitions. [2024-11-23 02:48:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states and 708 transitions. [2024-11-23 02:48:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-23 02:48:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 547 states have (on average 1.2943327239488116) internal successors, (708), 546 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 708 transitions. [2024-11-23 02:48:40,162 INFO L240 hiAutomatonCegarLoop]: Abstraction has 547 states and 708 transitions. [2024-11-23 02:48:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:48:40,167 INFO L425 stractBuchiCegarLoop]: Abstraction has 547 states and 708 transitions. [2024-11-23 02:48:40,167 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 02:48:40,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 547 states and 708 transitions. [2024-11-23 02:48:40,169 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 383 [2024-11-23 02:48:40,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:40,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:40,170 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:40,170 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:40,170 INFO L745 eck$LassoCheckResult]: Stem: 2111#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1946#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1947#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 2039#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2040#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2010#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2011#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1997#L839-2 [2024-11-23 02:48:40,171 INFO L747 eck$LassoCheckResult]: Loop: 1997#L839-2 assume !false; 1998#L840 assume test_~splverifierCounter~0#1 < 4; 2143#L841 havoc test_#t~nondet48#1;test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 2078#L849 assume !(0 != test_~tmp~9#1); 1944#L849-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 1945#L859 assume !(0 != test_~tmp___0~3#1); 2135#L859-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2136#L869 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet51#1;test_~tmp___1~0#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2219#L877 assume !(0 != test_~tmp___1~0#1); 1985#L877-2 assume { :begin_inline_timeShift } true; 2127#L589 assume !(0 != ~pumpRunning~0); 2167#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2108#L673 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 2046#L647-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2047#L621-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2035#L516-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2036#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 2146#L775-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1935#L775-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1936#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 1941#L625-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1942#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2058#L621-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2285#L647-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2009#L673-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 2215#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2213#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 2214#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 2094#L554-1 havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2095#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1997#L839-2 [2024-11-23 02:48:40,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-23 02:48:40,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143934298] [2024-11-23 02:48:40,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 02:48:40,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:40,193 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 02:48:40,201 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:48:40,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:40,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash 849743766, now seen corresponding path program 1 times [2024-11-23 02:48:40,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:40,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083193987] [2024-11-23 02:48:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:48:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:48:40,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:48:40,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083193987] [2024-11-23 02:48:40,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083193987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:48:40,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:48:40,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 02:48:40,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631551941] [2024-11-23 02:48:40,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:48:40,403 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-23 02:48:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:48:40,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:48:40,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:48:40,407 INFO L87 Difference]: Start difference. First operand 547 states and 708 transitions. cyclomatic complexity: 164 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:40,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 02:48:40,567 INFO L93 Difference]: Finished difference Result 583 states and 744 transitions. [2024-11-23 02:48:40,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 583 states and 744 transitions. [2024-11-23 02:48:40,569 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 407 [2024-11-23 02:48:40,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 583 states to 583 states and 744 transitions. [2024-11-23 02:48:40,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 583 [2024-11-23 02:48:40,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 583 [2024-11-23 02:48:40,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 583 states and 744 transitions. [2024-11-23 02:48:40,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 02:48:40,581 INFO L218 hiAutomatonCegarLoop]: Abstraction has 583 states and 744 transitions. [2024-11-23 02:48:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states and 744 transitions. [2024-11-23 02:48:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 583. [2024-11-23 02:48:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 583 states have (on average 1.2761578044596913) internal successors, (744), 582 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:48:40,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 744 transitions. [2024-11-23 02:48:40,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 583 states and 744 transitions. [2024-11-23 02:48:40,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:48:40,600 INFO L425 stractBuchiCegarLoop]: Abstraction has 583 states and 744 transitions. [2024-11-23 02:48:40,600 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 02:48:40,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 583 states and 744 transitions. [2024-11-23 02:48:40,602 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 407 [2024-11-23 02:48:40,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 02:48:40,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 02:48:40,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:40,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:48:40,603 INFO L745 eck$LassoCheckResult]: Stem: 3253#$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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 3254#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3083#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3084#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~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 3179#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3180#L1019 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3147#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3148#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3137#L839-2 [2024-11-23 02:48:40,603 INFO L747 eck$LassoCheckResult]: Loop: 3137#L839-2 assume !false; 3138#L840 assume test_~splverifierCounter~0#1 < 4; 3195#L841 havoc test_#t~nondet48#1;test_~tmp~9#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 3217#L849 assume !(0 != test_~tmp~9#1); 3081#L849-2 havoc test_#t~nondet49#1;test_~tmp___0~3#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 3082#L859 assume !(0 != test_~tmp___0~3#1); 3281#L859-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 3282#L869 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3123#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 3273#L877-2 assume { :begin_inline_timeShift } true; 3240#L589 assume !(0 != ~pumpRunning~0); 3241#L589-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3249#L673 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 3250#L647-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3422#L621-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3418#L516-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 3417#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret46#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret46#1;havoc isHighWaterLevel_#t~ret46#1; 3415#L775-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3413#L775-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 3265#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret34#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret46#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret34#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1; 3078#L625-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3079#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3198#L621-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret34#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3383#L647-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret35#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3347#L673-1 havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 3293#L596-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3283#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret32#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret32#1;havoc __utac_acc__Specification2_spec__2_#t~ret32#1; 3284#L554 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 3222#L554-1 havoc __utac_acc__Specification2_spec__2_#t~ret32#1, __utac_acc__Specification2_spec__2_#t~ret33#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3234#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3137#L839-2 [2024-11-23 02:48:40,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-23 02:48:40,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:40,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816167464] [2024-11-23 02:48:40,609 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-23 02:48:40,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:40,633 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-23 02:48:40,636 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-23 02:48:40,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:40,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -524175646, now seen corresponding path program 1 times [2024-11-23 02:48:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:40,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530551557] [2024-11-23 02:48:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:40,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:48:40,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1804934155, now seen corresponding path program 1 times [2024-11-23 02:48:40,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:48:40,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297327301] [2024-11-23 02:48:40,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:48:40,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:48:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:40,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:48:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:41,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:48:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:48:42,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:48:42 BoogieIcfgContainer [2024-11-23 02:48:42,033 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 02:48:42,034 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:48:42,034 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:48:42,034 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:48:42,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:38" (3/4) ... [2024-11-23 02:48:42,036 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-23 02:48:42,087 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:48:42,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:48:42,088 INFO L158 Benchmark]: Toolchain (without parser) took 4373.76ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 65.3MB in the beginning and 60.9MB in the end (delta: 4.4MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,088 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:48:42,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.06ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 64.9MB in the beginning and 165.5MB in the end (delta: -100.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.65ms. Allocated memory is still 207.6MB. Free memory was 165.5MB in the beginning and 161.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,089 INFO L158 Benchmark]: Boogie Preprocessor took 61.00ms. Allocated memory is still 207.6MB. Free memory was 161.3MB in the beginning and 156.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,089 INFO L158 Benchmark]: RCFGBuilder took 699.46ms. Allocated memory is still 207.6MB. Free memory was 156.2MB in the beginning and 114.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,089 INFO L158 Benchmark]: BuchiAutomizer took 3052.58ms. Allocated memory is still 207.6MB. Free memory was 114.3MB in the beginning and 64.0MB in the end (delta: 50.3MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,089 INFO L158 Benchmark]: Witness Printer took 53.70ms. Allocated memory is still 207.6MB. Free memory was 64.0MB in the beginning and 60.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:48:42,091 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.06ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 64.9MB in the beginning and 165.5MB in the end (delta: -100.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.65ms. Allocated memory is still 207.6MB. Free memory was 165.5MB in the beginning and 161.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.00ms. Allocated memory is still 207.6MB. Free memory was 161.3MB in the beginning and 156.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 699.46ms. Allocated memory is still 207.6MB. Free memory was 156.2MB in the beginning and 114.3MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3052.58ms. Allocated memory is still 207.6MB. Free memory was 114.3MB in the beginning and 64.0MB in the end (delta: 50.3MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * Witness Printer took 53.70ms. Allocated memory is still 207.6MB. Free memory was 64.0MB in the beginning and 60.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 535]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [535] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [575] - GenericResultAtLocation [Line: 827]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [827] - GenericResultAtLocation [Line: 897]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] - GenericResultAtLocation [Line: 935]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [935] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 583 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 553 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 553 mSDsluCounter, 1890 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 952 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 938 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 839]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L537] int methAndRunningLastTime ; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L936] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] int retValue_acc ; [L1011] int tmp ; [L1015] FCALL select_helpers() [L1016] FCALL select_features() [L1017] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1017] RET, EXPR valid_product() [L1017] tmp = valid_product() [L1019] COND TRUE \read(tmp) [L1021] FCALL setup() [L1022] CALL runTest() [L1003] CALL __utac_acc__Specification2_spec__1() [L542] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] RET __utac_acc__Specification2_spec__1() [L1004] CALL test() [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L839] COND TRUE 1 [L841] COND TRUE splverifierCounter < 4 [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND TRUE \read(tmp___2) [L871] CALL startSystem() [L823] systemActive = 1 [L871] RET startSystem() [L886] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] CALL processEnvironment__wrappee__lowWaterSensor() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L767] int retValue_acc ; [L768] int tmp ; [L769] int tmp___0 ; [L773] CALL, EXPR isHighWaterSensorDry() [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L773] RET, EXPR isHighWaterSensorDry() [L773] tmp = isHighWaterSensorDry() [L775] COND TRUE \read(tmp) [L776] tmp___0 = 0 [L780] retValue_acc = tmp___0 [L781] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L631] FCALL processEnvironment__wrappee__base() [L662] RET processEnvironment__wrappee__highWaterSensor() [L688] RET processEnvironment__wrappee__lowWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification2_spec__2() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR isMethaneLevelCritical() [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L552] RET, EXPR isMethaneLevelCritical() [L552] tmp = isMethaneLevelCritical() [L554] COND FALSE !(\read(tmp)) [L570] methAndRunningLastTime = 0 [L604] RET __utac_acc__Specification2_spec__2() [L886] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 839]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L537] int methAndRunningLastTime ; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L936] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1010] int retValue_acc ; [L1011] int tmp ; [L1015] FCALL select_helpers() [L1016] FCALL select_features() [L1017] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1017] RET, EXPR valid_product() [L1017] tmp = valid_product() [L1019] COND TRUE \read(tmp) [L1021] FCALL setup() [L1022] CALL runTest() [L1003] CALL __utac_acc__Specification2_spec__1() [L542] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1003] RET __utac_acc__Specification2_spec__1() [L1004] CALL test() [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L839] COND TRUE 1 [L841] COND TRUE splverifierCounter < 4 [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND TRUE \read(tmp___2) [L871] CALL startSystem() [L823] systemActive = 1 [L871] RET startSystem() [L886] CALL timeShift() [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L598] CALL processEnvironment() [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L688] CALL processEnvironment__wrappee__lowWaterSensor() [L644] int tmp ; [L647] COND FALSE !(\read(pumpRunning)) [L662] CALL processEnvironment__wrappee__highWaterSensor() [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L623] CALL, EXPR isHighWaterLevel() [L767] int retValue_acc ; [L768] int tmp ; [L769] int tmp___0 ; [L773] CALL, EXPR isHighWaterSensorDry() [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L773] RET, EXPR isHighWaterSensorDry() [L773] tmp = isHighWaterSensorDry() [L775] COND TRUE \read(tmp) [L776] tmp___0 = 0 [L780] retValue_acc = tmp___0 [L781] return (retValue_acc); [L623] RET, EXPR isHighWaterLevel() [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L631] FCALL processEnvironment__wrappee__base() [L662] RET processEnvironment__wrappee__highWaterSensor() [L688] RET processEnvironment__wrappee__lowWaterSensor() [L598] RET processEnvironment() [L604] CALL __utac_acc__Specification2_spec__2() [L547] int tmp ; [L548] int tmp___0 ; [L552] CALL, EXPR isMethaneLevelCritical() [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L552] RET, EXPR isMethaneLevelCritical() [L552] tmp = isMethaneLevelCritical() [L554] COND FALSE !(\read(tmp)) [L570] methAndRunningLastTime = 0 [L604] RET __utac_acc__Specification2_spec__2() [L886] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-23 02:48:42,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)