./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f 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_product39.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 df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 21:41:25,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 21:41:25,672 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-12 21:41:25,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 21:41:25,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 21:41:25,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 21:41:25,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 21:41:25,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 21:41:25,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 21:41:25,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 21:41:25,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 21:41:25,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 21:41:25,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 21:41:25,716 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 21:41:25,717 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 21:41:25,717 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 21:41:25,720 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 21:41:25,720 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 21:41:25,721 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 21:41:25,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 21:41:25,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 21:41:25,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 21:41:25,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 21:41:25,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 21:41:25,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 21:41:25,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 21:41:25,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 21:41:25,723 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 21:41:25,723 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 21:41:25,724 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 21:41:25,724 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 21:41:25,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 21:41:25,724 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 21:41:25,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 21:41:25,725 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 21:41:25,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 21:41:25,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 21:41:25,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 21:41:25,728 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 21:41:25,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df3faf2d1bbcaed92e1c2eddcb5ae1d2459730e99808e363d537a0bc5d54e347 [2024-11-12 21:41:25,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 21:41:26,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 21:41:26,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 21:41:26,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 21:41:26,017 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 21:41:26,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2024-11-12 21:41:27,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 21:41:27,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 21:41:27,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product39.cil.c [2024-11-12 21:41:27,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff10ea5a0/94dea7833ccc478cb01bed6649e7e588/FLAG7e5cfb30b [2024-11-12 21:41:28,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff10ea5a0/94dea7833ccc478cb01bed6649e7e588 [2024-11-12 21:41:28,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 21:41:28,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 21:41:28,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 21:41:28,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 21:41:28,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 21:41:28,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd945d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28, skipping insertion in model container [2024-11-12 21:41:28,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,079 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 21:41:28,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:41:28,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 21:41:28,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-12 21:41:28,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-12 21:41:28,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-11-12 21:41:28,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] [2024-11-12 21:41:28,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] [2024-11-12 21:41:28,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] [2024-11-12 21:41:28,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] [2024-11-12 21:41:28,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] [2024-11-12 21:41:28,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 21:41:28,496 INFO L204 MainTranslator]: Completed translation [2024-11-12 21:41:28,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28 WrapperNode [2024-11-12 21:41:28,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 21:41:28,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 21:41:28,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 21:41:28,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 21:41:28,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,564 INFO L138 Inliner]: procedures = 56, calls = 103, calls flagged for inlining = 56, calls inlined = 89, statements flattened = 578 [2024-11-12 21:41:28,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 21:41:28,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 21:41:28,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 21:41:28,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 21:41:28,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,584 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,602 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]. [2024-11-12 21:41:28,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,603 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 21:41:28,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 21:41:28,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 21:41:28,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 21:41:28,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (1/1) ... [2024-11-12 21:41:28,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 21:41:28,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:28,661 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) [2024-11-12 21:41:28,663 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 [2024-11-12 21:41:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 21:41:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 21:41:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 21:41:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 21:41:28,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 21:41:28,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 21:41:29,230 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-12 21:41:29,231 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 21:41:29,254 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 21:41:29,254 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 21:41:29,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:29 BoogieIcfgContainer [2024-11-12 21:41:29,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 21:41:29,256 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 21:41:29,256 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 21:41:29,259 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 21:41:29,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:29,261 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 09:41:28" (1/3) ... [2024-11-12 21:41:29,262 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@154cd2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:41:29, skipping insertion in model container [2024-11-12 21:41:29,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:29,263 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:41:28" (2/3) ... [2024-11-12 21:41:29,263 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@154cd2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 09:41:29, skipping insertion in model container [2024-11-12 21:41:29,263 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 21:41:29,263 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:29" (3/3) ... [2024-11-12 21:41:29,264 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product39.cil.c [2024-11-12 21:41:29,333 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 21:41:29,334 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 21:41:29,335 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 21:41:29,335 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 21:41:29,335 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 21:41:29,335 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 21:41:29,335 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 21:41:29,335 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 21:41:29,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 172 states have internal predecessors, (234), 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) [2024-11-12 21:41:29,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-12 21:41:29,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:29,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:29,369 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:29,369 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:29,369 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 21:41:29,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 173 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 172 states have internal predecessors, (234), 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) [2024-11-12 21:41:29,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-11-12 21:41:29,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:29,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:29,378 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:29,378 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:29,383 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret17#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:29,383 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet18#1;test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet19#1;test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet20#1;test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1;" "__utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:29,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-12 21:41:29,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642349726] [2024-11-12 21:41:29,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:29,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:29,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:29,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:29,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:29,538 INFO L85 PathProgramCache]: Analyzing trace with hash 648985326, now seen corresponding path program 1 times [2024-11-12 21:41:29,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:29,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348736208] [2024-11-12 21:41:29,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:29,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:29,552 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:29,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:29,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash -690367081, now seen corresponding path program 1 times [2024-11-12 21:41:29,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:29,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818126995] [2024-11-12 21:41:29,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:29,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:29,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818126995] [2024-11-12 21:41:29,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818126995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:29,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796122608] [2024-11-12 21:41:29,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:29,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:29,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:29,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:29,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 21:41:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:29,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 21:41:29,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:29,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:29,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796122608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:29,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:29,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-12 21:41:29,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925259203] [2024-11-12 21:41:29,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:30,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:30,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 21:41:30,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-12 21:41:30,141 INFO L87 Difference]: Start difference. First operand has 173 states, 172 states have (on average 1.3604651162790697) internal successors, (234), 172 states have internal predecessors, (234), 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 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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) [2024-11-12 21:41:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:30,278 INFO L93 Difference]: Finished difference Result 399 states and 522 transitions. [2024-11-12 21:41:30,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 399 states and 522 transitions. [2024-11-12 21:41:30,288 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 257 [2024-11-12 21:41:30,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 399 states to 369 states and 492 transitions. [2024-11-12 21:41:30,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 369 [2024-11-12 21:41:30,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 369 [2024-11-12 21:41:30,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 369 states and 492 transitions. [2024-11-12 21:41:30,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:30,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 369 states and 492 transitions. [2024-11-12 21:41:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states and 492 transitions. [2024-11-12 21:41:30,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 218. [2024-11-12 21:41:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 217 states have internal predecessors, (290), 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) [2024-11-12 21:41:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 290 transitions. [2024-11-12 21:41:30,351 INFO L240 hiAutomatonCegarLoop]: Abstraction has 218 states and 290 transitions. [2024-11-12 21:41:30,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 21:41:30,356 INFO L426 stractBuchiCegarLoop]: Abstraction has 218 states and 290 transitions. [2024-11-12 21:41:30,358 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-12 21:41:30,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 290 transitions. [2024-11-12 21:41:30,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2024-11-12 21:41:30,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:30,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:30,366 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:30,366 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:30,366 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret17#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:30,366 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet18#1;test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet19#1;test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet20#1;test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1;" "__utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:30,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:30,367 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-12 21:41:30,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:30,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268623589] [2024-11-12 21:41:30,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:30,399 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:30,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:30,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 650605018, now seen corresponding path program 1 times [2024-11-12 21:41:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:30,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836009662] [2024-11-12 21:41:30,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:30,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:30,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836009662] [2024-11-12 21:41:30,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836009662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:30,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105219380] [2024-11-12 21:41:30,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:30,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:30,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:30,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 21:41:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:30,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 21:41:30,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:30,546 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:30,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105219380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:30,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:30,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 21:41:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998932129] [2024-11-12 21:41:30,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:30,563 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 21:41:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 21:41:30,568 INFO L87 Difference]: Start difference. First operand 218 states and 290 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 21:41:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:30,661 INFO L93 Difference]: Finished difference Result 277 states and 353 transitions. [2024-11-12 21:41:30,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 353 transitions. [2024-11-12 21:41:30,663 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2024-11-12 21:41:30,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 277 states and 353 transitions. [2024-11-12 21:41:30,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 277 [2024-11-12 21:41:30,671 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2024-11-12 21:41:30,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 353 transitions. [2024-11-12 21:41:30,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:30,674 INFO L218 hiAutomatonCegarLoop]: Abstraction has 277 states and 353 transitions. [2024-11-12 21:41:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 353 transitions. [2024-11-12 21:41:30,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2024-11-12 21:41:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 276 states have internal predecessors, (353), 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) [2024-11-12 21:41:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 353 transitions. [2024-11-12 21:41:30,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 277 states and 353 transitions. [2024-11-12 21:41:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 21:41:30,696 INFO L426 stractBuchiCegarLoop]: Abstraction has 277 states and 353 transitions. [2024-11-12 21:41:30,696 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-12 21:41:30,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 277 states and 353 transitions. [2024-11-12 21:41:30,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2024-11-12 21:41:30,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:30,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:30,699 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:30,699 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] [2024-11-12 21:41:30,699 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret17#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:30,700 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet18#1;test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet19#1;test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet20#1;test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1;" "__utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:30,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:30,701 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-12 21:41:30,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:30,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981951485] [2024-11-12 21:41:30,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:30,720 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:30,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:30,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1531147986, now seen corresponding path program 1 times [2024-11-12 21:41:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:30,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280907295] [2024-11-12 21:41:30,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:30,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 21:41:30,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280907295] [2024-11-12 21:41:30,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280907295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 21:41:30,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53147605] [2024-11-12 21:41:30,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:30,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 21:41:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 21:41:30,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 21:41:30,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 21:41:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 21:41:30,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 21:41:30,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 21:41:31,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 21:41:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53147605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 21:41:31,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 21:41:31,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-12 21:41:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143169984] [2024-11-12 21:41:31,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 21:41:31,057 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-12 21:41:31,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 21:41:31,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 21:41:31,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 21:41:31,058 INFO L87 Difference]: Start difference. First operand 277 states and 353 transitions. cyclomatic complexity: 79 Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2024-11-12 21:41:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 21:41:31,203 INFO L93 Difference]: Finished difference Result 543 states and 677 transitions. [2024-11-12 21:41:31,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 543 states and 677 transitions. [2024-11-12 21:41:31,208 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2024-11-12 21:41:31,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 543 states to 543 states and 677 transitions. [2024-11-12 21:41:31,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 543 [2024-11-12 21:41:31,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 543 [2024-11-12 21:41:31,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 543 states and 677 transitions. [2024-11-12 21:41:31,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-12 21:41:31,215 INFO L218 hiAutomatonCegarLoop]: Abstraction has 543 states and 677 transitions. [2024-11-12 21:41:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states and 677 transitions. [2024-11-12 21:41:31,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-11-12 21:41:31,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 543 states have (on average 1.2467771639042358) internal successors, (677), 542 states have internal predecessors, (677), 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) [2024-11-12 21:41:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 677 transitions. [2024-11-12 21:41:31,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 543 states and 677 transitions. [2024-11-12 21:41:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 21:41:31,245 INFO L426 stractBuchiCegarLoop]: Abstraction has 543 states and 677 transitions. [2024-11-12 21:41:31,246 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-12 21:41:31,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 543 states and 677 transitions. [2024-11-12 21:41:31,249 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 391 [2024-11-12 21:41:31,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 21:41:31,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 21:41:31,251 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 21:41:31,251 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] [2024-11-12 21:41:31,251 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret17#1, main_~retValue_acc~5#1, main_~tmp~3#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret17#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret17#1;havoc main_#t~ret17#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-12 21:41:31,252 INFO L749 eck$LassoCheckResult]: Loop: "assume !false;" "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet18#1;test_~tmp~4#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet19#1;test_~tmp___0~1#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet20#1;test_~tmp___2~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1;" "__utac_acc__Specification5_spec__2_#t~ret22#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret22#1;havoc __utac_acc__Specification5_spec__2_#t~ret22#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret22#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1;" "isHighWaterLevel_#t~ret16#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret16#1;havoc isHighWaterLevel_#t~ret16#1;" "assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret5#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret16#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret5#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret5#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~5#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1;" "__utac_acc__Specification5_spec__3_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~5#1 := __utac_acc__Specification5_spec__3_#t~ret23#1;havoc __utac_acc__Specification5_spec__3_#t~ret23#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~5#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1;" "__utac_acc__Specification5_spec__3_#t~ret24#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret24#1;havoc __utac_acc__Specification5_spec__3_#t~ret24#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret23#1, __utac_acc__Specification5_spec__3_#t~ret24#1, __utac_acc__Specification5_spec__3_~tmp~5#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-12 21:41:31,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:31,253 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-12 21:41:31,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:31,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116654415] [2024-11-12 21:41:31,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:31,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,269 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:31,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1761570899, now seen corresponding path program 1 times [2024-11-12 21:41:31,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:31,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837360401] [2024-11-12 21:41:31,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:31,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,293 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 21:41:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1721356196, now seen corresponding path program 1 times [2024-11-12 21:41:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 21:41:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599432137] [2024-11-12 21:41:31,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 21:41:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 21:41:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,312 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:31,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 21:41:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:32,196 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 21:41:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 21:41:32,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 09:41:32 BoogieIcfgContainer [2024-11-12 21:41:32,254 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 21:41:32,255 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 21:41:32,255 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 21:41:32,256 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 21:41:32,256 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:41:29" (3/4) ... [2024-11-12 21:41:32,258 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 21:41:32,324 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 21:41:32,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 21:41:32,324 INFO L158 Benchmark]: Toolchain (without parser) took 4289.42ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 109.5MB in the beginning and 112.7MB in the end (delta: -3.2MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,325 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 21:41:32,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.41ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 88.1MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.47ms. Allocated memory is still 165.7MB. Free memory was 88.1MB in the beginning and 84.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,325 INFO L158 Benchmark]: Boogie Preprocessor took 55.65ms. Allocated memory is still 165.7MB. Free memory was 84.7MB in the beginning and 81.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,326 INFO L158 Benchmark]: RCFGBuilder took 633.41ms. Allocated memory is still 165.7MB. Free memory was 81.3MB in the beginning and 115.2MB in the end (delta: -33.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,326 INFO L158 Benchmark]: BuchiAutomizer took 2998.52ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 115.2MB in the beginning and 115.9MB in the end (delta: -696.3kB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,326 INFO L158 Benchmark]: Witness Printer took 68.85ms. Allocated memory is still 226.5MB. Free memory was 115.9MB in the beginning and 112.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 21:41:32,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 165.7MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.41ms. Allocated memory is still 165.7MB. Free memory was 109.5MB in the beginning and 88.1MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.47ms. Allocated memory is still 165.7MB. Free memory was 88.1MB in the beginning and 84.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.65ms. Allocated memory is still 165.7MB. Free memory was 84.7MB in the beginning and 81.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 633.41ms. Allocated memory is still 165.7MB. Free memory was 81.3MB in the beginning and 115.2MB in the end (delta: -33.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2998.52ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 115.2MB in the beginning and 115.9MB in the end (delta: -696.3kB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Witness Printer took 68.85ms. Allocated memory is still 226.5MB. Free memory was 115.9MB in the beginning and 112.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [304] - GenericResultAtLocation [Line: 405]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [405] - GenericResultAtLocation [Line: 472]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [472] - GenericResultAtLocation [Line: 522]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [522] - GenericResultAtLocation [Line: 888]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [888] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 543 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 151 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 909 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 909 mSDsluCounter, 2419 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1793 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 626 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 416]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L305] int cleanupTimeShifts = 4; [L474] int switchedOnBeforeTS ; [L692] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L383] int retValue_acc ; [L384] int tmp ; [L388] FCALL select_helpers() [L389] FCALL select_features() [L390] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L390] RET, EXPR valid_product() [L390] tmp = valid_product() [L392] COND TRUE \read(tmp) [L394] FCALL setup() [L395] CALL runTest() [L376] CALL __utac_acc__Specification5_spec__1() [L479] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L376] RET __utac_acc__Specification5_spec__1() [L377] CALL test() [L407] int splverifierCounter ; [L408] int tmp ; [L409] int tmp___0 ; [L410] int tmp___1 ; [L411] int tmp___2 ; [L414] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L416] COND TRUE 1 [L418] COND TRUE splverifierCounter < 4 [L424] tmp = __VERIFIER_nondet_int() [L426] COND FALSE !(\read(tmp)) [L434] tmp___0 = __VERIFIER_nondet_int() [L436] COND FALSE !(\read(tmp___0)) [L444] tmp___2 = __VERIFIER_nondet_int() [L446] COND TRUE \read(tmp___2) [L461] CALL timeShift() [L117] CALL __utac_acc__Specification5_spec__2() [L488] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L488] RET, EXPR isPumpRunning() [L488] switchedOnBeforeTS = isPumpRunning() [L117] RET __utac_acc__Specification5_spec__2() [L119] COND FALSE !(\read(pumpRunning)) [L126] COND TRUE \read(systemActive) [L128] CALL processEnvironment() [L174] int tmp ; [L177] COND FALSE !(\read(pumpRunning)) [L192] CALL processEnvironment__wrappee__highWaterSensor() [L148] int tmp ; [L151] COND TRUE ! pumpRunning [L153] CALL, EXPR isHighWaterLevel() [L271] int retValue_acc ; [L272] int tmp ; [L273] int tmp___0 ; [L277] CALL, EXPR isHighWaterSensorDry() [L969] int retValue_acc ; [L972] COND TRUE waterLevel < 2 [L973] retValue_acc = 1 [L974] return (retValue_acc); [L277] RET, EXPR isHighWaterSensorDry() [L277] tmp = isHighWaterSensorDry() [L279] COND TRUE \read(tmp) [L280] tmp___0 = 0 [L284] retValue_acc = tmp___0 [L285] return (retValue_acc); [L153] RET, EXPR isHighWaterLevel() [L153] tmp = isHighWaterLevel() [L155] COND FALSE !(\read(tmp)) [L161] FCALL processEnvironment__wrappee__base() [L192] RET processEnvironment__wrappee__highWaterSensor() [L128] RET processEnvironment() [L134] CALL __utac_acc__Specification5_spec__3() [L494] int tmp ; [L495] int tmp___0 ; [L499] CALL, EXPR getWaterLevel() [L960] int retValue_acc ; [L963] retValue_acc = waterLevel [L964] return (retValue_acc); [L499] RET, EXPR getWaterLevel() [L499] tmp = getWaterLevel() [L501] COND TRUE tmp != 2 [L503] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L503] RET, EXPR isPumpRunning() [L503] tmp___0 = isPumpRunning() [L505] COND FALSE !(\read(tmp___0)) [L134] RET __utac_acc__Specification5_spec__3() [L461] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 416]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L107] int pumpRunning = 0; [L108] int systemActive = 1; [L305] int cleanupTimeShifts = 4; [L474] int switchedOnBeforeTS ; [L692] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L889] int waterLevel = 1; [L890] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L383] int retValue_acc ; [L384] int tmp ; [L388] FCALL select_helpers() [L389] FCALL select_features() [L390] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L390] RET, EXPR valid_product() [L390] tmp = valid_product() [L392] COND TRUE \read(tmp) [L394] FCALL setup() [L395] CALL runTest() [L376] CALL __utac_acc__Specification5_spec__1() [L479] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L376] RET __utac_acc__Specification5_spec__1() [L377] CALL test() [L407] int splverifierCounter ; [L408] int tmp ; [L409] int tmp___0 ; [L410] int tmp___1 ; [L411] int tmp___2 ; [L414] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L416] COND TRUE 1 [L418] COND TRUE splverifierCounter < 4 [L424] tmp = __VERIFIER_nondet_int() [L426] COND FALSE !(\read(tmp)) [L434] tmp___0 = __VERIFIER_nondet_int() [L436] COND FALSE !(\read(tmp___0)) [L444] tmp___2 = __VERIFIER_nondet_int() [L446] COND TRUE \read(tmp___2) [L461] CALL timeShift() [L117] CALL __utac_acc__Specification5_spec__2() [L488] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L488] RET, EXPR isPumpRunning() [L488] switchedOnBeforeTS = isPumpRunning() [L117] RET __utac_acc__Specification5_spec__2() [L119] COND FALSE !(\read(pumpRunning)) [L126] COND TRUE \read(systemActive) [L128] CALL processEnvironment() [L174] int tmp ; [L177] COND FALSE !(\read(pumpRunning)) [L192] CALL processEnvironment__wrappee__highWaterSensor() [L148] int tmp ; [L151] COND TRUE ! pumpRunning [L153] CALL, EXPR isHighWaterLevel() [L271] int retValue_acc ; [L272] int tmp ; [L273] int tmp___0 ; [L277] CALL, EXPR isHighWaterSensorDry() [L969] int retValue_acc ; [L972] COND TRUE waterLevel < 2 [L973] retValue_acc = 1 [L974] return (retValue_acc); [L277] RET, EXPR isHighWaterSensorDry() [L277] tmp = isHighWaterSensorDry() [L279] COND TRUE \read(tmp) [L280] tmp___0 = 0 [L284] retValue_acc = tmp___0 [L285] return (retValue_acc); [L153] RET, EXPR isHighWaterLevel() [L153] tmp = isHighWaterLevel() [L155] COND FALSE !(\read(tmp)) [L161] FCALL processEnvironment__wrappee__base() [L192] RET processEnvironment__wrappee__highWaterSensor() [L128] RET processEnvironment() [L134] CALL __utac_acc__Specification5_spec__3() [L494] int tmp ; [L495] int tmp___0 ; [L499] CALL, EXPR getWaterLevel() [L960] int retValue_acc ; [L963] retValue_acc = waterLevel [L964] return (retValue_acc); [L499] RET, EXPR getWaterLevel() [L499] tmp = getWaterLevel() [L501] COND TRUE tmp != 2 [L503] CALL, EXPR isPumpRunning() [L226] int retValue_acc ; [L229] retValue_acc = pumpRunning [L230] return (retValue_acc); [L503] RET, EXPR isPumpRunning() [L503] tmp___0 = isPumpRunning() [L505] COND FALSE !(\read(tmp___0)) [L134] RET __utac_acc__Specification5_spec__3() [L461] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 21:41:32,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:32,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:32,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 21:41:32,953 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)