./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec5_product54.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 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:04:29,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:04:29,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:04:29,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:04:29,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:04:29,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:04:29,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:04:29,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:04:29,493 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:04:29,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:04:29,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:04:29,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:04:29,495 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:04:29,495 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:04:29,497 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:04:29,498 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:04:29,498 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:04:29,498 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:04:29,499 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:04:29,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:04:29,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:04:29,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:04:29,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:04:29,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:04:29,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:04:29,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:04:29,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:04:29,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:04:29,505 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:04:29,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:04:29,506 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:04:29,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:04:29,506 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:04:29,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:04:29,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:04:29,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:04:29,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:04:29,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:04:29,507 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:04:29,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 [2024-11-09 16:04:29,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:04:29,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:04:29,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:04:29,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:04:29,811 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:04:29,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-11-09 16:04:31,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:04:31,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:04:31,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2024-11-09 16:04:31,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e71e838/b5d5866bdb9146789146fac208c8d1a5/FLAGda86f962b [2024-11-09 16:04:31,538 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e71e838/b5d5866bdb9146789146fac208c8d1a5 [2024-11-09 16:04:31,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:04:31,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:04:31,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:04:31,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:04:31,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:04:31,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:04:31" (1/1) ... [2024-11-09 16:04:31,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772bffb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:31, skipping insertion in model container [2024-11-09 16:04:31,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:04:31" (1/1) ... [2024-11-09 16:04:31,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:04:31,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:04:31,971 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:04:31,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-09 16:04:31,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [101] [2024-11-09 16:04:31,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] [2024-11-09 16:04:31,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] [2024-11-09 16:04:31,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] [2024-11-09 16:04:31,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] [2024-11-09 16:04:31,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] [2024-11-09 16:04:31,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] [2024-11-09 16:04:32,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:04:32,097 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:04:32,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32 WrapperNode [2024-11-09 16:04:32,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:04:32,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:04:32,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:04:32,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:04:32,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,186 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 60, calls inlined = 148, statements flattened = 994 [2024-11-09 16:04:32,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:04:32,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:04:32,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:04:32,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:04:32,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,248 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]. [2024-11-09 16:04:32,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:04:32,291 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:04:32,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:04:32,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:04:32,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (1/1) ... [2024-11-09 16:04:32,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:04:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:04:32,340 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) [2024-11-09 16:04:32,342 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 [2024-11-09 16:04:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:04:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:04:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:04:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:04:32,445 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:04:32,447 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:04:33,140 INFO L? ?]: Removed 241 outVars from TransFormulas that were not future-live. [2024-11-09 16:04:33,140 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:04:33,156 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:04:33,156 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:04:33,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:33 BoogieIcfgContainer [2024-11-09 16:04:33,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:04:33,157 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:04:33,157 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:04:33,159 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:04:33,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:33,160 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:04:31" (1/3) ... [2024-11-09 16:04:33,161 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@373e1496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:04:33, skipping insertion in model container [2024-11-09 16:04:33,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:33,161 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:04:32" (2/3) ... [2024-11-09 16:04:33,161 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@373e1496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:04:33, skipping insertion in model container [2024-11-09 16:04:33,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:04:33,161 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:33" (3/3) ... [2024-11-09 16:04:33,162 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2024-11-09 16:04:33,200 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:04:33,200 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:04:33,200 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:04:33,200 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:04:33,200 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:04:33,200 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:04:33,200 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:04:33,201 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:04:33,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3639575971731448) internal successors, (386), 283 states have internal predecessors, (386), 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) [2024-11-09 16:04:33,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2024-11-09 16:04:33,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:33,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:33,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:33,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:33,239 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:04:33,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3639575971731448) internal successors, (386), 283 states have internal predecessors, (386), 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) [2024-11-09 16:04:33,251 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 185 [2024-11-09 16:04:33,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:33,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:33,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:33,252 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] [2024-11-09 16:04:33,256 INFO L745 eck$LassoCheckResult]: Stem: 164#$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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 176#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 27#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 252#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 93#valid_product_returnLabel#1true main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 219#L310true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 70#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 268#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 168#L571-2true [2024-11-09 16:04:33,256 INFO L747 eck$LassoCheckResult]: Loop: 168#L571-2true assume !false; 106#L572true assume test_~splverifierCounter~0#1 < 4; 54#L573true havoc test_#t~nondet27#1;test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 283#L581true assume !(0 != test_~tmp~7#1); 262#L581-2true havoc test_#t~nondet28#1;test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 114#L591true assume !(0 != test_~tmp___0~3#1); 117#L591-2true havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 195#L601true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 83#L609true assume 0 != test_~tmp___1~0#1; 284#L609-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 263#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 230#__utac_acc__Specification5_spec__2_returnLabel#1true havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 223#L337true assume !(0 != ~pumpRunning~0); 124#L337-2true assume !(0 != ~systemActive~0); 111#L344-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 205#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 145#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 265#L80-1true havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 206#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 168#L571-2true [2024-11-09 16:04:33,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:33,261 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-09 16:04:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766050846] [2024-11-09 16:04:33,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:33,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:33,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:33,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:33,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash 560091022, now seen corresponding path program 1 times [2024-11-09 16:04:33,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:33,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219137310] [2024-11-09 16:04:33,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:33,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:33,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:33,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1989839365, now seen corresponding path program 1 times [2024-11-09 16:04:33,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:33,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679183281] [2024-11-09 16:04:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:33,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679183281] [2024-11-09 16:04:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679183281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:33,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:33,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:04:33,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120636254] [2024-11-09 16:04:33,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:33,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:33,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:04:33,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:04:33,824 INFO L87 Difference]: Start difference. First operand has 284 states, 283 states have (on average 1.3639575971731448) internal successors, (386), 283 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.5) 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) [2024-11-09 16:04:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:33,945 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2024-11-09 16:04:33,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 278 states and 369 transitions. [2024-11-09 16:04:33,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2024-11-09 16:04:33,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 278 states to 268 states and 359 transitions. [2024-11-09 16:04:33,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2024-11-09 16:04:33,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2024-11-09 16:04:33,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 359 transitions. [2024-11-09 16:04:33,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:33,970 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 359 transitions. [2024-11-09 16:04:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 359 transitions. [2024-11-09 16:04:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-09 16:04:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2024-11-09 16:04:34,007 INFO L240 hiAutomatonCegarLoop]: Abstraction has 268 states and 359 transitions. [2024-11-09 16:04:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:04:34,012 INFO L425 stractBuchiCegarLoop]: Abstraction has 268 states and 359 transitions. [2024-11-09 16:04:34,012 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:04:34,012 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 268 states and 359 transitions. [2024-11-09 16:04:34,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2024-11-09 16:04:34,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:34,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:34,017 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,017 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] [2024-11-09 16:04:34,018 INFO L745 eck$LassoCheckResult]: Stem: 809#$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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 810#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 625#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 626#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 733#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 734#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 696#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 697#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 812#L571-2 [2024-11-09 16:04:34,018 INFO L747 eck$LassoCheckResult]: Loop: 812#L571-2 assume !false; 750#L572 assume test_~splverifierCounter~0#1 < 4; 670#L573 havoc test_#t~nondet27#1;test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 671#L581 assume !(0 != test_~tmp~7#1); 829#L581-2 havoc test_#t~nondet28#1;test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 762#L591 assume !(0 != test_~tmp___0~3#1); 763#L591-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 766#L601 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 721#L609 assume 0 != test_~tmp___1~0#1; 676#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 845#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 835#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 834#L337 assume !(0 != ~pumpRunning~0); 773#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 631#L421 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret16#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 632#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret16#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret16#1;havoc isMethaneAlarm_#t~ret16#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 846#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret16#1, isMethaneAlarm_~retValue_acc~5#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 843#L425 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 842#deactivatePump_returnLabel#1 assume { :end_inline_deactivatePump } true; 838#L421-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 755#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 756#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 792#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 641#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 830#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 812#L571-2 [2024-11-09 16:04:34,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,019 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-09 16:04:34,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009975135] [2024-11-09 16:04:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:34,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1262010519, now seen corresponding path program 1 times [2024-11-09 16:04:34,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291429377] [2024-11-09 16:04:34,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:34,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:34,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291429377] [2024-11-09 16:04:34,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291429377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:34,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:34,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 16:04:34,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939216461] [2024-11-09 16:04:34,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:34,085 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:04:34,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:34,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 16:04:34,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 16:04:34,087 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:04:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:34,246 INFO L93 Difference]: Finished difference Result 288 states and 365 transitions. [2024-11-09 16:04:34,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 365 transitions. [2024-11-09 16:04:34,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2024-11-09 16:04:34,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 365 transitions. [2024-11-09 16:04:34,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2024-11-09 16:04:34,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 288 [2024-11-09 16:04:34,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 365 transitions. [2024-11-09 16:04:34,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:34,262 INFO L218 hiAutomatonCegarLoop]: Abstraction has 288 states and 365 transitions. [2024-11-09 16:04:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 365 transitions. [2024-11-09 16:04:34,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-09 16:04:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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) [2024-11-09 16:04:34,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 365 transitions. [2024-11-09 16:04:34,280 INFO L240 hiAutomatonCegarLoop]: Abstraction has 288 states and 365 transitions. [2024-11-09 16:04:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 16:04:34,283 INFO L425 stractBuchiCegarLoop]: Abstraction has 288 states and 365 transitions. [2024-11-09 16:04:34,283 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-09 16:04:34,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 365 transitions. [2024-11-09 16:04:34,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2024-11-09 16:04:34,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:34,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:34,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,287 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,287 INFO L745 eck$LassoCheckResult]: Stem: 1330#$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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1331#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1169#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1170#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1267#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1268#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1235#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1236#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1333#L571-2 [2024-11-09 16:04:34,287 INFO L747 eck$LassoCheckResult]: Loop: 1333#L571-2 assume !false; 1278#L572 assume test_~splverifierCounter~0#1 < 4; 1279#L573 havoc test_#t~nondet27#1;test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1375#L581 assume !(0 != test_~tmp~7#1); 1352#L581-2 havoc test_#t~nondet28#1;test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1401#L591 assume !(0 != test_~tmp___0~3#1); 1386#L591-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1385#L601 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1383#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1382#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 1381#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1380#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1359#L337 assume !(0 != ~pumpRunning~0); 1298#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1175#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 1176#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1315#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1342#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1364#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1148#L523-9 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1149#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1340#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1301#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1281#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1282#L369-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1398#L395-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1368#L421-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 1397#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1396#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1394#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1391#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1390#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1333#L571-2 [2024-11-09 16:04:34,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-09 16:04:34,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018272955] [2024-11-09 16:04:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:34,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1990782107, now seen corresponding path program 1 times [2024-11-09 16:04:34,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562592046] [2024-11-09 16:04:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:34,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:34,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562592046] [2024-11-09 16:04:34,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562592046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:34,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:34,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 16:04:34,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148961727] [2024-11-09 16:04:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:34,377 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:04:34,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:34,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 16:04:34,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 16:04:34,378 INFO L87 Difference]: Start difference. First operand 288 states and 365 transitions. cyclomatic complexity: 79 Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-09 16:04:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:34,492 INFO L93 Difference]: Finished difference Result 306 states and 383 transitions. [2024-11-09 16:04:34,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 383 transitions. [2024-11-09 16:04:34,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2024-11-09 16:04:34,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 306 states and 383 transitions. [2024-11-09 16:04:34,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 306 [2024-11-09 16:04:34,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 306 [2024-11-09 16:04:34,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 306 states and 383 transitions. [2024-11-09 16:04:34,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:34,503 INFO L218 hiAutomatonCegarLoop]: Abstraction has 306 states and 383 transitions. [2024-11-09 16:04:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states and 383 transitions. [2024-11-09 16:04:34,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-09 16:04:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 306 states have (on average 1.2516339869281046) internal successors, (383), 305 states have internal predecessors, (383), 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) [2024-11-09 16:04:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 383 transitions. [2024-11-09 16:04:34,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 306 states and 383 transitions. [2024-11-09 16:04:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 16:04:34,521 INFO L425 stractBuchiCegarLoop]: Abstraction has 306 states and 383 transitions. [2024-11-09 16:04:34,521 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-09 16:04:34,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 306 states and 383 transitions. [2024-11-09 16:04:34,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 210 [2024-11-09 16:04:34,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:34,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:34,525 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,525 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,526 INFO L745 eck$LassoCheckResult]: Stem: 1934#$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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1935#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1771#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1772#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1869#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1870#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1838#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1839#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1937#L571-2 [2024-11-09 16:04:34,526 INFO L747 eck$LassoCheckResult]: Loop: 1937#L571-2 assume !false; 1879#L572 assume test_~splverifierCounter~0#1 < 4; 1815#L573 havoc test_#t~nondet27#1;test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1816#L581 assume !(0 != test_~tmp~7#1); 1954#L581-2 havoc test_#t~nondet28#1;test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1889#L591 assume !(0 != test_~tmp___0~3#1); 1890#L591-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1892#L601 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1860#L609 assume 0 != test_~tmp___1~0#1; 1818#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 1972#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1962#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1961#L337 assume !(0 != ~pumpRunning~0); 1901#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1777#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 1778#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1918#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1945#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1964#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1749#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1750#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1943#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1902#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1881#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 1822#L369-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1823#L395-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1966#L421-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 1884#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1885#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1915#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1786#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1955#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1937#L571-2 [2024-11-09 16:04:34,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-09 16:04:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346287486] [2024-11-09 16:04:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:34,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1771315720, now seen corresponding path program 1 times [2024-11-09 16:04:34,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427015787] [2024-11-09 16:04:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:04:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:04:34,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:04:34,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427015787] [2024-11-09 16:04:34,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427015787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:04:34,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:04:34,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:04:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179241532] [2024-11-09 16:04:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:04:34,650 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-09 16:04:34,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:04:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 16:04:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 16:04:34,651 INFO L87 Difference]: Start difference. First operand 306 states and 383 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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) [2024-11-09 16:04:34,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:04:34,799 INFO L93 Difference]: Finished difference Result 566 states and 694 transitions. [2024-11-09 16:04:34,799 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 566 states and 694 transitions. [2024-11-09 16:04:34,803 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 394 [2024-11-09 16:04:34,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 566 states to 566 states and 694 transitions. [2024-11-09 16:04:34,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 566 [2024-11-09 16:04:34,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 566 [2024-11-09 16:04:34,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 566 states and 694 transitions. [2024-11-09 16:04:34,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:04:34,808 INFO L218 hiAutomatonCegarLoop]: Abstraction has 566 states and 694 transitions. [2024-11-09 16:04:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states and 694 transitions. [2024-11-09 16:04:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2024-11-09 16:04:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 566 states have (on average 1.226148409893993) internal successors, (694), 565 states have internal predecessors, (694), 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) [2024-11-09 16:04:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 694 transitions. [2024-11-09 16:04:34,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 566 states and 694 transitions. [2024-11-09 16:04:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:04:34,831 INFO L425 stractBuchiCegarLoop]: Abstraction has 566 states and 694 transitions. [2024-11-09 16:04:34,832 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-09 16:04:34,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 566 states and 694 transitions. [2024-11-09 16:04:34,836 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 394 [2024-11-09 16:04:34,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:04:34,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:04:34,837 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,839 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:04:34,840 INFO L745 eck$LassoCheckResult]: Stem: 2826#$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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2827#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2653#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2654#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2754#valid_product_returnLabel#1 main_#t~ret12#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 2755#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 2722#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2723#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2900#L571-2 [2024-11-09 16:04:34,840 INFO L747 eck$LassoCheckResult]: Loop: 2900#L571-2 assume !false; 3036#L572 assume test_~splverifierCounter~0#1 < 4; 3034#L573 havoc test_#t~nondet27#1;test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3031#L581 assume !(0 != test_~tmp~7#1); 2896#L581-2 havoc test_#t~nondet28#1;test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2778#L591 assume !(0 != test_~tmp___0~3#1); 2779#L591-2 havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2781#L601 assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2744#L609 assume 0 != test_~tmp___1~0#1; 2700#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 2897#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 2875#__utac_acc__Specification5_spec__2_returnLabel#1 havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2873#L337 assume !(0 != ~pumpRunning~0); 2874#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2660#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 2661#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2808#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2878#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2879#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2963#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2959#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2955#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 2950#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2951#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 3056#L369-7 havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2901#L395-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2880#L421-1 havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true; 2883#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3049#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3046#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 3045#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 3044#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 3042#L80-1 havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3041#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2900#L571-2 [2024-11-09 16:04:34,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,841 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-11-09 16:04:34,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542197769] [2024-11-09 16:04:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1448356877, now seen corresponding path program 1 times [2024-11-09 16:04:34,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494683920] [2024-11-09 16:04:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:34,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:04:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash 612793500, now seen corresponding path program 1 times [2024-11-09 16:04:34,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:04:34,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43923349] [2024-11-09 16:04:34,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:04:34,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:04:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:34,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:04:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:35,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:04:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:04:35,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:04:35 BoogieIcfgContainer [2024-11-09 16:04:35,916 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:04:35,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:04:35,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:04:35,917 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:04:35,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:04:33" (3/4) ... [2024-11-09 16:04:35,919 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:04:35,991 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:04:35,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:04:35,991 INFO L158 Benchmark]: Toolchain (without parser) took 4450.28ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 142.0MB in the beginning and 151.4MB in the end (delta: -9.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,992 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:04:35,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.01ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 123.5MB in the end (delta: 18.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.20ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 119.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,992 INFO L158 Benchmark]: Boogie Preprocessor took 102.56ms. Allocated memory is still 172.0MB. Free memory was 119.3MB in the beginning and 113.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,992 INFO L158 Benchmark]: RCFGBuilder took 865.20ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 127.9MB in the end (delta: -14.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,993 INFO L158 Benchmark]: BuchiAutomizer took 2758.89ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 127.9MB in the beginning and 154.5MB in the end (delta: -26.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,993 INFO L158 Benchmark]: Witness Printer took 74.65ms. Allocated memory is still 207.6MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:04:35,994 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.01ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 123.5MB in the end (delta: 18.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.20ms. Allocated memory is still 172.0MB. Free memory was 123.5MB in the beginning and 119.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.56ms. Allocated memory is still 172.0MB. Free memory was 119.3MB in the beginning and 113.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 865.20ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 127.9MB in the end (delta: -14.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2758.89ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 127.9MB in the beginning and 154.5MB in the end (delta: -26.6MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 74.65ms. Allocated memory is still 207.6MB. Free memory was 154.5MB in the beginning and 151.4MB 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [101] - GenericResultAtLocation [Line: 211]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [211] - GenericResultAtLocation [Line: 220]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [220] - GenericResultAtLocation [Line: 323]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [323] - GenericResultAtLocation [Line: 560]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [560] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [627] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [662] * 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 566 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.3s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1138 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1138 mSDsluCounter, 3348 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2146 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1202 mSDtfsCounter, 280 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: 571]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L109] int waterLevel = 1; [L110] int methaneLevelCritical = 0; [L221] int cleanupTimeShifts = 4; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L832] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L301] int retValue_acc ; [L302] int tmp ; [L306] FCALL select_helpers() [L307] FCALL select_features() [L308] CALL, EXPR valid_product() [L654] int retValue_acc ; [L657] retValue_acc = 1 [L658] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L308] RET, EXPR valid_product() [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L312] FCALL setup() [L313] CALL runTest() [L291] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L291] RET __utac_acc__Specification5_spec__1() [L292] CALL test() [L562] int splverifierCounter ; [L563] int tmp ; [L564] int tmp___0 ; [L565] int tmp___1 ; [L566] int tmp___2 ; [L569] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L571] COND TRUE 1 [L573] COND TRUE splverifierCounter < 4 [L579] tmp = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp)) [L589] tmp___0 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___0)) [L599] tmp___2 = __VERIFIER_nondet_int() [L601] COND FALSE !(\read(tmp___2)) [L607] tmp___1 = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp___1) [L616] CALL timeShift() [L335] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L335] RET __utac_acc__Specification5_spec__2() [L337] COND FALSE !(\read(pumpRunning)) [L344] COND TRUE \read(systemActive) [L346] CALL processEnvironment() [L418] int tmp ; [L421] COND FALSE !(\read(pumpRunning)) [L436] CALL processEnvironment__wrappee__lowWaterSensor() [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L410] CALL processEnvironment__wrappee__highWaterSensor() [L366] int tmp ; [L369] COND TRUE ! pumpRunning [L371] CALL, EXPR isHighWaterLevel() [L515] int retValue_acc ; [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isHighWaterSensorDry() [L189] int retValue_acc ; [L192] COND TRUE waterLevel < 2 [L193] retValue_acc = 1 [L194] return (retValue_acc); [L521] RET, EXPR isHighWaterSensorDry() [L521] tmp = isHighWaterSensorDry() [L523] COND TRUE \read(tmp) [L524] tmp___0 = 0 [L528] retValue_acc = tmp___0 [L529] return (retValue_acc); [L371] RET, EXPR isHighWaterLevel() [L371] tmp = isHighWaterLevel() [L373] COND FALSE !(\read(tmp)) [L379] FCALL processEnvironment__wrappee__base() [L410] RET processEnvironment__wrappee__highWaterSensor() [L436] RET processEnvironment__wrappee__lowWaterSensor() [L346] RET processEnvironment() [L352] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L180] int retValue_acc ; [L183] retValue_acc = waterLevel [L184] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L352] RET __utac_acc__Specification5_spec__3() [L616] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 571]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L109] int waterLevel = 1; [L110] int methaneLevelCritical = 0; [L221] int cleanupTimeShifts = 4; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L832] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L301] int retValue_acc ; [L302] int tmp ; [L306] FCALL select_helpers() [L307] FCALL select_features() [L308] CALL, EXPR valid_product() [L654] int retValue_acc ; [L657] retValue_acc = 1 [L658] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L308] RET, EXPR valid_product() [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L312] FCALL setup() [L313] CALL runTest() [L291] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L291] RET __utac_acc__Specification5_spec__1() [L292] CALL test() [L562] int splverifierCounter ; [L563] int tmp ; [L564] int tmp___0 ; [L565] int tmp___1 ; [L566] int tmp___2 ; [L569] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L571] COND TRUE 1 [L573] COND TRUE splverifierCounter < 4 [L579] tmp = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp)) [L589] tmp___0 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___0)) [L599] tmp___2 = __VERIFIER_nondet_int() [L601] COND FALSE !(\read(tmp___2)) [L607] tmp___1 = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp___1) [L616] CALL timeShift() [L335] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L335] RET __utac_acc__Specification5_spec__2() [L337] COND FALSE !(\read(pumpRunning)) [L344] COND TRUE \read(systemActive) [L346] CALL processEnvironment() [L418] int tmp ; [L421] COND FALSE !(\read(pumpRunning)) [L436] CALL processEnvironment__wrappee__lowWaterSensor() [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L410] CALL processEnvironment__wrappee__highWaterSensor() [L366] int tmp ; [L369] COND TRUE ! pumpRunning [L371] CALL, EXPR isHighWaterLevel() [L515] int retValue_acc ; [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isHighWaterSensorDry() [L189] int retValue_acc ; [L192] COND TRUE waterLevel < 2 [L193] retValue_acc = 1 [L194] return (retValue_acc); [L521] RET, EXPR isHighWaterSensorDry() [L521] tmp = isHighWaterSensorDry() [L523] COND TRUE \read(tmp) [L524] tmp___0 = 0 [L528] retValue_acc = tmp___0 [L529] return (retValue_acc); [L371] RET, EXPR isHighWaterLevel() [L371] tmp = isHighWaterLevel() [L373] COND FALSE !(\read(tmp)) [L379] FCALL processEnvironment__wrappee__base() [L410] RET processEnvironment__wrappee__highWaterSensor() [L436] RET processEnvironment__wrappee__lowWaterSensor() [L346] RET processEnvironment() [L352] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L180] int retValue_acc ; [L183] retValue_acc = waterLevel [L184] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L352] RET __utac_acc__Specification5_spec__3() [L616] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:04:36,025 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)