./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product21.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 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 16:02:00,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 16:02:00,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-09 16:02:00,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 16:02:00,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 16:02:00,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 16:02:00,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 16:02:00,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 16:02:00,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 16:02:00,173 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 16:02:00,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 16:02:00,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 16:02:00,174 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 16:02:00,175 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-09 16:02:00,175 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-09 16:02:00,176 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-09 16:02:00,176 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-09 16:02:00,176 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-09 16:02:00,177 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-09 16:02:00,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 16:02:00,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-09 16:02:00,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 16:02:00,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 16:02:00,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 16:02:00,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 16:02:00,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-09 16:02:00,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-09 16:02:00,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-09 16:02:00,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 16:02:00,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 16:02:00,181 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 16:02:00,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 16:02:00,182 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-09 16:02:00,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 16:02:00,182 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 16:02:00,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 16:02:00,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 16:02:00,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 16:02:00,186 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-09 16:02:00,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88ff815406ee05bb7be24dfe33a6433686b8428d0ee44eba6801f1c0f5610c0a [2024-11-09 16:02:00,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 16:02:00,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 16:02:00,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 16:02:00,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 16:02:00,477 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 16:02:00,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2024-11-09 16:02:02,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 16:02:02,234 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 16:02:02,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product21.cil.c [2024-11-09 16:02:02,251 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2392f1525/39ee8079f52b40fd890c48f333f1bb90/FLAG9009a2d8b [2024-11-09 16:02:02,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2392f1525/39ee8079f52b40fd890c48f333f1bb90 [2024-11-09 16:02:02,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 16:02:02,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 16:02:02,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:02,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 16:02:02,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 16:02:02,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a63409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02, skipping insertion in model container [2024-11-09 16:02:02,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 16:02:02,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:02,614 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 16:02:02,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-09 16:02:02,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [415] [2024-11-09 16:02:02,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [457] [2024-11-09 16:02:02,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [562] [2024-11-09 16:02:02,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [655] [2024-11-09 16:02:02,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] [2024-11-09 16:02:02,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] [2024-11-09 16:02:02,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [879] [2024-11-09 16:02:02,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 16:02:02,735 INFO L204 MainTranslator]: Completed translation [2024-11-09 16:02:02,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02 WrapperNode [2024-11-09 16:02:02,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 16:02:02,737 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:02,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 16:02:02,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 16:02:02,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,793 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 52, calls inlined = 81, statements flattened = 523 [2024-11-09 16:02:02,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 16:02:02,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 16:02:02,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 16:02:02,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 16:02:02,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,830 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 16:02:02,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,859 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 16:02:02,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 16:02:02,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 16:02:02,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 16:02:02,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (1/1) ... [2024-11-09 16:02:02,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-09 16:02:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 16:02:02,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-09 16:02:02,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-09 16:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 16:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 16:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 16:02:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 16:02:03,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 16:02:03,072 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 16:02:03,488 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-09 16:02:03,489 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 16:02:03,513 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 16:02:03,513 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 16:02:03,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:03 BoogieIcfgContainer [2024-11-09 16:02:03,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 16:02:03,515 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-09 16:02:03,515 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-09 16:02:03,518 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-09 16:02:03,518 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:03,519 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 04:02:02" (1/3) ... [2024-11-09 16:02:03,519 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c53b764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:03, skipping insertion in model container [2024-11-09 16:02:03,519 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:03,519 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:02:02" (2/3) ... [2024-11-09 16:02:03,520 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c53b764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 04:02:03, skipping insertion in model container [2024-11-09 16:02:03,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-09 16:02:03,520 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:03" (3/3) ... [2024-11-09 16:02:03,521 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product21.cil.c [2024-11-09 16:02:03,577 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-09 16:02:03,577 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-09 16:02:03,578 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-09 16:02:03,579 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-09 16:02:03,579 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-09 16:02:03,579 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-09 16:02:03,579 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-09 16:02:03,579 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-09 16:02:03,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:03,607 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2024-11-09 16:02:03,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:03,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:03,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:03,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:03,615 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-09 16:02:03,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:03,623 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2024-11-09 16:02:03,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:03,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:03,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:03,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:03,630 INFO L745 eck$LassoCheckResult]: Stem: 34#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 47#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 127#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 106#valid_product_returnLabel#1true main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 59#L549true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 92#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 123#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 19#L890-2true [2024-11-09 16:02:03,631 INFO L747 eck$LassoCheckResult]: Loop: 19#L890-2true assume !false; 93#L891true assume test_~splverifierCounter~0#1 < 4; 143#L892true havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 105#L900true assume !(0 != test_~tmp~8#1); 128#L900-2true havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 16#L910true assume !(0 != test_~tmp___0~2#1); 73#L910-2true havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 148#L920true assume 0 != test_~tmp___2~0#1; 119#L926-2true assume { :begin_inline_timeShift } true; 138#L709true assume !(0 != ~pumpRunning~0); 8#L709-2true assume !(0 != ~systemActive~0); 140#L716-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 89#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 43#L436true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 27#L436-1true havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 80#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 19#L890-2true [2024-11-09 16:02:03,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:03,637 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-09 16:02:03,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:03,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797050240] [2024-11-09 16:02:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:03,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:03,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:03,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash -947888244, now seen corresponding path program 1 times [2024-11-09 16:02:03,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:03,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577534837] [2024-11-09 16:02:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:03,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:03,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:03,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1110175627, now seen corresponding path program 1 times [2024-11-09 16:02:03,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:03,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213956641] [2024-11-09 16:02:03,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:03,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 16:02:04,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 16:02:04,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 16:02:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213956641] [2024-11-09 16:02:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213956641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 16:02:04,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 16:02:04,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 16:02:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16821077] [2024-11-09 16:02:04,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 16:02:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 16:02:04,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 16:02:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 16:02:04,249 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 16:02:04,351 INFO L93 Difference]: Finished difference Result 151 states and 194 transitions. [2024-11-09 16:02:04,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 194 transitions. [2024-11-09 16:02:04,359 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2024-11-09 16:02:04,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 141 states and 184 transitions. [2024-11-09 16:02:04,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 141 [2024-11-09 16:02:04,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 141 [2024-11-09 16:02:04,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 184 transitions. [2024-11-09 16:02:04,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-09 16:02:04,377 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-09 16:02:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 184 transitions. [2024-11-09 16:02:04,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-09 16:02:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 140 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 16:02:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2024-11-09 16:02:04,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-09 16:02:04,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 16:02:04,431 INFO L425 stractBuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2024-11-09 16:02:04,431 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-09 16:02:04,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 184 transitions. [2024-11-09 16:02:04,433 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 94 [2024-11-09 16:02:04,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-09 16:02:04,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-09 16:02:04,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:04,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 16:02:04,435 INFO L745 eck$LassoCheckResult]: Stem: 381#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 382#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 373#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 374#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 450#valid_product_returnLabel#1 main_#t~ret29#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 412#L549 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 413#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 438#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet48#1, test_#t~nondet49#1, test_#t~nondet50#1, test_#t~nondet51#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 354#L890-2 [2024-11-09 16:02:04,438 INFO L747 eck$LassoCheckResult]: Loop: 354#L890-2 assume !false; 355#L891 assume test_~splverifierCounter~0#1 < 4; 439#L892 havoc test_#t~nondet48#1;test_~tmp~8#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 449#L900 assume !(0 != test_~tmp~8#1); 406#L900-2 havoc test_#t~nondet49#1;test_~tmp___0~2#1 := test_#t~nondet49#1;havoc test_#t~nondet49#1; 347#L910 assume !(0 != test_~tmp___0~2#1); 349#L910-2 havoc test_#t~nondet50#1;test_~tmp___2~0#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 426#L920 assume 0 != test_~tmp___2~0#1; 456#L926-2 assume { :begin_inline_timeShift } true; 461#L709 assume !(0 != ~pumpRunning~0); 332#L709-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 333#L767 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 444#L741-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 326#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 327#L741-3 havoc processEnvironment__wrappee__lowWaterSensor_#t~ret36#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 420#L767-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~6#1;assume { :end_inline_processEnvironment } true; 421#L716-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~3#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 435#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret27#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~3#1 := __utac_acc__Specification2_spec__2_#t~ret27#1;havoc __utac_acc__Specification2_spec__2_#t~ret27#1; 393#L436 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3#1);~methAndRunningLastTime~0 := 0; 361#L436-1 havoc __utac_acc__Specification2_spec__2_#t~ret27#1, __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_~tmp~3#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 370#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 354#L890-2 [2024-11-09 16:02:04,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:04,439 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-09 16:02:04,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:04,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318457951] [2024-11-09 16:02:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:04,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:04,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:04,487 INFO L85 PathProgramCache]: Analyzing trace with hash -571726008, now seen corresponding path program 1 times [2024-11-09 16:02:04,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:04,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563579235] [2024-11-09 16:02:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:04,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:04,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 16:02:04,513 INFO L85 PathProgramCache]: Analyzing trace with hash -973103105, now seen corresponding path program 1 times [2024-11-09 16:02:04,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 16:02:04,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041119325] [2024-11-09 16:02:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 16:02:04,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 16:02:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:04,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 16:02:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:05,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 16:02:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 16:02:05,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 04:02:05 BoogieIcfgContainer [2024-11-09 16:02:05,558 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-09 16:02:05,559 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 16:02:05,559 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 16:02:05,559 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 16:02:05,560 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:02:03" (3/4) ... [2024-11-09 16:02:05,562 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-09 16:02:05,620 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 16:02:05,620 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 16:02:05,621 INFO L158 Benchmark]: Toolchain (without parser) took 3353.92ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 99.6MB in the beginning and 152.0MB in the end (delta: -52.4MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,621 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 16:02:05,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 78.3MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.74ms. Allocated memory is still 159.4MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,622 INFO L158 Benchmark]: Boogie Preprocessor took 67.95ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 72.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,622 INFO L158 Benchmark]: RCFGBuilder took 646.80ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 72.0MB in the beginning and 189.4MB in the end (delta: -117.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,623 INFO L158 Benchmark]: BuchiAutomizer took 2043.92ms. Allocated memory is still 239.1MB. Free memory was 189.4MB in the beginning and 155.2MB in the end (delta: 34.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,623 INFO L158 Benchmark]: Witness Printer took 61.42ms. Allocated memory is still 239.1MB. Free memory was 154.1MB in the beginning and 152.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 16:02:05,625 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 159.4MB. Free memory was 99.6MB in the beginning and 78.3MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.74ms. Allocated memory is still 159.4MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.95ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 72.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 646.80ms. Allocated memory was 159.4MB in the beginning and 239.1MB in the end (delta: 79.7MB). Free memory was 72.0MB in the beginning and 189.4MB in the end (delta: -117.4MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2043.92ms. Allocated memory is still 239.1MB. Free memory was 189.4MB in the beginning and 155.2MB in the end (delta: 34.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 61.42ms. Allocated memory is still 239.1MB. Free memory was 154.1MB in the beginning and 152.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [415] - GenericResultAtLocation [Line: 457]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [457] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [562] - GenericResultAtLocation [Line: 655]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [655] - GenericResultAtLocation [Line: 664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [699] - GenericResultAtLocation [Line: 879]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [879] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 371 mSDsluCounter, 562 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 373 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 189 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 890]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L419] int methAndRunningLastTime ; [L458] int cleanupTimeShifts = 4; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L702] int pumpRunning = 0; [L703] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] int retValue_acc ; [L541] int tmp ; [L545] FCALL select_helpers() [L546] FCALL select_features() [L547] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] RET, EXPR valid_product() [L547] tmp = valid_product() [L549] COND TRUE \read(tmp) [L551] FCALL setup() [L552] CALL runTest() [L530] CALL __utac_acc__Specification2_spec__1() [L424] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] RET __utac_acc__Specification2_spec__1() [L531] CALL test() [L881] int splverifierCounter ; [L882] int tmp ; [L883] int tmp___0 ; [L884] int tmp___1 ; [L885] int tmp___2 ; [L888] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L890] COND TRUE 1 [L892] COND TRUE splverifierCounter < 4 [L898] tmp = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp)) [L908] tmp___0 = __VERIFIER_nondet_int() [L910] COND FALSE !(\read(tmp___0)) [L918] tmp___2 = __VERIFIER_nondet_int() [L920] COND TRUE \read(tmp___2) [L933] CALL timeShift() [L709] COND FALSE !(\read(pumpRunning)) [L716] COND TRUE \read(systemActive) [L718] CALL processEnvironment() [L764] int tmp ; [L767] COND FALSE !(\read(pumpRunning)) [L782] CALL processEnvironment__wrappee__lowWaterSensor() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] FCALL processEnvironment__wrappee__base() [L782] RET processEnvironment__wrappee__lowWaterSensor() [L718] RET processEnvironment() [L724] CALL __utac_acc__Specification2_spec__2() [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR isMethaneLevelCritical() [L606] int retValue_acc ; [L609] retValue_acc = methaneLevelCritical [L610] return (retValue_acc); [L434] RET, EXPR isMethaneLevelCritical() [L434] tmp = isMethaneLevelCritical() [L436] COND FALSE !(\read(tmp)) [L452] methAndRunningLastTime = 0 [L724] RET __utac_acc__Specification2_spec__2() [L933] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 890]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L419] int methAndRunningLastTime ; [L458] int cleanupTimeShifts = 4; [L567] int waterLevel = 1; [L568] int methaneLevelCritical = 0; [L702] int pumpRunning = 0; [L703] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] int retValue_acc ; [L541] int tmp ; [L545] FCALL select_helpers() [L546] FCALL select_features() [L547] CALL, EXPR valid_product() [L691] int retValue_acc ; [L694] retValue_acc = 1 [L695] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] RET, EXPR valid_product() [L547] tmp = valid_product() [L549] COND TRUE \read(tmp) [L551] FCALL setup() [L552] CALL runTest() [L530] CALL __utac_acc__Specification2_spec__1() [L424] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] RET __utac_acc__Specification2_spec__1() [L531] CALL test() [L881] int splverifierCounter ; [L882] int tmp ; [L883] int tmp___0 ; [L884] int tmp___1 ; [L885] int tmp___2 ; [L888] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L890] COND TRUE 1 [L892] COND TRUE splverifierCounter < 4 [L898] tmp = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp)) [L908] tmp___0 = __VERIFIER_nondet_int() [L910] COND FALSE !(\read(tmp___0)) [L918] tmp___2 = __VERIFIER_nondet_int() [L920] COND TRUE \read(tmp___2) [L933] CALL timeShift() [L709] COND FALSE !(\read(pumpRunning)) [L716] COND TRUE \read(systemActive) [L718] CALL processEnvironment() [L764] int tmp ; [L767] COND FALSE !(\read(pumpRunning)) [L782] CALL processEnvironment__wrappee__lowWaterSensor() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] FCALL processEnvironment__wrappee__base() [L782] RET processEnvironment__wrappee__lowWaterSensor() [L718] RET processEnvironment() [L724] CALL __utac_acc__Specification2_spec__2() [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR isMethaneLevelCritical() [L606] int retValue_acc ; [L609] retValue_acc = methaneLevelCritical [L610] return (retValue_acc); [L434] RET, EXPR isMethaneLevelCritical() [L434] tmp = isMethaneLevelCritical() [L436] COND FALSE !(\read(tmp)) [L452] methAndRunningLastTime = 0 [L724] RET __utac_acc__Specification2_spec__2() [L933] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 16:02:05,655 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)