./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:52:40,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:52:40,572 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-20 22:52:40,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:52:40,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:52:40,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:52:40,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:52:40,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:52:40,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:52:40,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:52:40,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:52:40,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:52:40,612 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:52:40,613 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-20 22:52:40,614 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-20 22:52:40,615 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-20 22:52:40,615 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-20 22:52:40,615 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-20 22:52:40,616 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-20 22:52:40,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:52:40,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-20 22:52:40,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:52:40,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-20 22:52:40,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:52:40,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:52:40,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:52:40,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:52:40,622 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-20 22:52:40,622 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:52:40,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:52:40,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:52:40,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:52:40,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:52:40,625 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-20 22:52:40,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2024-11-20 22:52:40,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:52:40,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:52:40,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:52:40,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:52:40,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:52:40,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-11-20 22:52:42,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:52:42,528 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:52:42,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-11-20 22:52:42,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929b5c0d2/a47d869ff1bb4693bd3d00363cbbe5c2/FLAG1b162de98 [2024-11-20 22:52:42,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/929b5c0d2/a47d869ff1bb4693bd3d00363cbbe5c2 [2024-11-20 22:52:42,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:52:42,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:52:42,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:52:42,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:52:42,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:52:42,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:52:42" (1/1) ... [2024-11-20 22:52:42,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794214ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:42, skipping insertion in model container [2024-11-20 22:52:42,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:52:42" (1/1) ... [2024-11-20 22:52:42,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:52:42,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:52:42,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:52:42,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-11-20 22:52:42,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2024-11-20 22:52:42,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] [2024-11-20 22:52:42,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2024-11-20 22:52:42,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] [2024-11-20 22:52:42,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] [2024-11-20 22:52:42,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] [2024-11-20 22:52:42,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] [2024-11-20 22:52:43,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:52:43,031 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:52:43,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43 WrapperNode [2024-11-20 22:52:43,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:52:43,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:52:43,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:52:43,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:52:43,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,104 INFO L138 Inliner]: procedures = 55, calls = 103, calls flagged for inlining = 56, calls inlined = 85, statements flattened = 547 [2024-11-20 22:52:43,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:52:43,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:52:43,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:52:43,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:52:43,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,124 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,150 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]. [2024-11-20 22:52:43,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:52:43,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:52:43,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:52:43,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:52:43,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (1/1) ... [2024-11-20 22:52:43,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-20 22:52:43,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:52:43,207 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) [2024-11-20 22:52:43,210 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 [2024-11-20 22:52:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:52:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:52:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:52:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:52:43,341 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:52:43,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:52:43,814 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-20 22:52:43,814 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:52:43,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:52:43,835 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 22:52:43,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:43 BoogieIcfgContainer [2024-11-20 22:52:43,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:52:43,836 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-20 22:52:43,836 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-20 22:52:43,839 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-20 22:52:43,840 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:52:43,840 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:52:42" (1/3) ... [2024-11-20 22:52:43,841 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c3c5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:52:43, skipping insertion in model container [2024-11-20 22:52:43,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:52:43,841 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:52:43" (2/3) ... [2024-11-20 22:52:43,841 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18c3c5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:52:43, skipping insertion in model container [2024-11-20 22:52:43,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-20 22:52:43,841 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:43" (3/3) ... [2024-11-20 22:52:43,843 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2024-11-20 22:52:43,892 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-20 22:52:43,893 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-20 22:52:43,893 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-20 22:52:43,893 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-20 22:52:43,893 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-20 22:52:43,893 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-20 22:52:43,893 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-20 22:52:43,894 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-20 22:52:43,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 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) [2024-11-20 22:52:43,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-20 22:52:43,924 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:52:43,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:52:43,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:43,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:43,932 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-20 22:52:43,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 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) [2024-11-20 22:52:43,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2024-11-20 22:52:43,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:52:43,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:52:43,938 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:43,939 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:43,942 INFO L745 eck$LassoCheckResult]: Stem: 38#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 34#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 135#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 119#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 13#L960true assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 95#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 75#L534-2true [2024-11-20 22:52:43,943 INFO L747 eck$LassoCheckResult]: Loop: 75#L534-2true assume !false; 115#L535true assume test_~splverifierCounter~0#1 < 4; 87#L536true havoc test_#t~nondet32#1;test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 138#L544true assume !(0 != test_~tmp~3#1); 7#L544-2true havoc test_#t~nondet33#1;test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 163#L554true assume !(0 != test_~tmp___0~0#1); 22#L554-2true havoc test_#t~nondet34#1;test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 23#L564true assume 0 != test_~tmp___2~0#1; 61#L570-2true assume { :begin_inline_timeShift } true; 148#L603true assume !(0 != ~pumpRunning~0); 3#L603-2true assume !(0 != ~systemActive~0); 31#L610-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 91#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 103#L815true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 164#L821-1true havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 81#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 75#L534-2true [2024-11-20 22:52:43,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-20 22:52:43,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:43,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283814678] [2024-11-20 22:52:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:44,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash -126041962, now seen corresponding path program 1 times [2024-11-20 22:52:44,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611218100] [2024-11-20 22:52:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:44,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:44,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1229377114, now seen corresponding path program 1 times [2024-11-20 22:52:44,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:44,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629681478] [2024-11-20 22:52:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:52:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:52:44,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:52:44,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629681478] [2024-11-20 22:52:44,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629681478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:52:44,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:52:44,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 22:52:44,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216365856] [2024-11-20 22:52:44,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:52:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:52:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:52:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 22:52:44,547 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.345679012345679) internal successors, (218), 162 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:52:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:52:44,696 INFO L93 Difference]: Finished difference Result 377 states and 488 transitions. [2024-11-20 22:52:44,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 377 states and 488 transitions. [2024-11-20 22:52:44,705 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 243 [2024-11-20 22:52:44,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 377 states to 347 states and 458 transitions. [2024-11-20 22:52:44,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2024-11-20 22:52:44,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2024-11-20 22:52:44,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 458 transitions. [2024-11-20 22:52:44,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:52:44,723 INFO L218 hiAutomatonCegarLoop]: Abstraction has 347 states and 458 transitions. [2024-11-20 22:52:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 458 transitions. [2024-11-20 22:52:44,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 205. [2024-11-20 22:52:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.3219512195121952) internal successors, (271), 204 states have internal predecessors, (271), 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) [2024-11-20 22:52:44,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 271 transitions. [2024-11-20 22:52:44,762 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 271 transitions. [2024-11-20 22:52:44,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:52:44,768 INFO L425 stractBuchiCegarLoop]: Abstraction has 205 states and 271 transitions. [2024-11-20 22:52:44,769 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-20 22:52:44,769 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 271 transitions. [2024-11-20 22:52:44,771 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2024-11-20 22:52:44,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:52:44,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:52:44,772 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:44,773 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] [2024-11-20 22:52:44,773 INFO L745 eck$LassoCheckResult]: Stem: 620#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 621#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 613#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 614#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 691#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 574#L960 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 575#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 656#L534-2 [2024-11-20 22:52:44,773 INFO L747 eck$LassoCheckResult]: Loop: 656#L534-2 assume !false; 657#L535 assume test_~splverifierCounter~0#1 < 4; 670#L536 havoc test_#t~nondet32#1;test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 671#L544 assume !(0 != test_~tmp~3#1); 564#L544-2 havoc test_#t~nondet33#1;test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 565#L554 assume !(0 != test_~tmp___0~0#1); 573#L554-2 havoc test_#t~nondet34#1;test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 590#L564 assume 0 != test_~tmp___2~0#1; 592#L570-2 assume { :begin_inline_timeShift } true; 644#L603 assume !(0 != ~pumpRunning~0); 558#L603-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 559#L661 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 647#L635-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 560#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 561#L635-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 658#L661-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 605#L610-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 606#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 673#L815 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 680#L821-1 havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 663#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 656#L534-2 [2024-11-20 22:52:44,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-20 22:52:44,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:44,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48746390] [2024-11-20 22:52:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:44,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:44,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash 953573147, now seen corresponding path program 1 times [2024-11-20 22:52:44,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:44,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257477263] [2024-11-20 22:52:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:44,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:44,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:44,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1405242327, now seen corresponding path program 1 times [2024-11-20 22:52:44,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:44,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455321048] [2024-11-20 22:52:44,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:52:44,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:52:44,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:52:44,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455321048] [2024-11-20 22:52:44,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455321048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:52:44,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:52:44,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 22:52:44,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891393817] [2024-11-20 22:52:44,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:52:45,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:52:45,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 22:52:45,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 22:52:45,042 INFO L87 Difference]: Start difference. First operand 205 states and 271 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-20 22:52:45,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 22:52:45,153 INFO L93 Difference]: Finished difference Result 403 states and 527 transitions. [2024-11-20 22:52:45,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 403 states and 527 transitions. [2024-11-20 22:52:45,156 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 288 [2024-11-20 22:52:45,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 403 states to 403 states and 527 transitions. [2024-11-20 22:52:45,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 403 [2024-11-20 22:52:45,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 403 [2024-11-20 22:52:45,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 403 states and 527 transitions. [2024-11-20 22:52:45,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-20 22:52:45,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 403 states and 527 transitions. [2024-11-20 22:52:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states and 527 transitions. [2024-11-20 22:52:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-20 22:52:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 403 states have (on average 1.3076923076923077) internal successors, (527), 402 states have internal predecessors, (527), 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) [2024-11-20 22:52:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 527 transitions. [2024-11-20 22:52:45,194 INFO L240 hiAutomatonCegarLoop]: Abstraction has 403 states and 527 transitions. [2024-11-20 22:52:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 22:52:45,195 INFO L425 stractBuchiCegarLoop]: Abstraction has 403 states and 527 transitions. [2024-11-20 22:52:45,195 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-20 22:52:45,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 403 states and 527 transitions. [2024-11-20 22:52:45,198 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 288 [2024-11-20 22:52:45,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-20 22:52:45,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-20 22:52:45,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:52:45,199 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] [2024-11-20 22:52:45,199 INFO L745 eck$LassoCheckResult]: Stem: 1245#$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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~9#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~9#1;assume { :begin_inline_select_helpers } true; 1238#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1239#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1330#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~9#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1196#L960 assume 0 != main_~tmp~9#1;assume { :begin_inline_setup } true; 1197#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1289#L534-2 [2024-11-20 22:52:45,199 INFO L747 eck$LassoCheckResult]: Loop: 1289#L534-2 assume !false; 1290#L535 assume test_~splverifierCounter~0#1 < 4; 1326#L536 havoc test_#t~nondet32#1;test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 1434#L544 assume !(0 != test_~tmp~3#1); 1186#L544-2 havoc test_#t~nondet33#1;test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1187#L554 assume !(0 != test_~tmp___0~0#1); 1372#L554-2 havoc test_#t~nondet34#1;test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1213#L564 assume 0 != test_~tmp___2~0#1; 1215#L570-2 assume { :begin_inline_timeShift } true; 1275#L603 assume !(0 != ~pumpRunning~0); 1423#L603-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1422#L661 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1421#L635-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1409#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 1408#L635-3 havoc processEnvironment__wrappee__methaneQuery_#t~ret36#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1306#L661-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1307#L610-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1444#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1443#L815 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1294#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1295#L821 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1441#L821-1 havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1296#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1289#L534-2 [2024-11-20 22:52:45,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-20 22:52:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:45,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090165213] [2024-11-20 22:52:45,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:45,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:45,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1556954000, now seen corresponding path program 1 times [2024-11-20 22:52:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869215338] [2024-11-20 22:52:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:45,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:45,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:52:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1819339084, now seen corresponding path program 1 times [2024-11-20 22:52:45,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:52:45,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100069671] [2024-11-20 22:52:45,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:52:45,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:52:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:45,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 22:52:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:46,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 22:52:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 22:52:46,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:52:46 BoogieIcfgContainer [2024-11-20 22:52:46,175 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-20 22:52:46,175 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:52:46,175 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:52:46,176 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:52:46,176 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:43" (3/4) ... [2024-11-20 22:52:46,177 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-20 22:52:46,220 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:52:46,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:52:46,221 INFO L158 Benchmark]: Toolchain (without parser) took 3661.06ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 80.0MB in the beginning and 112.9MB in the end (delta: -32.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,221 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:52:46,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.65ms. Allocated memory is still 148.9MB. Free memory was 79.8MB in the beginning and 103.9MB in the end (delta: -24.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.18ms. Allocated memory is still 148.9MB. Free memory was 103.9MB in the beginning and 100.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,223 INFO L158 Benchmark]: Boogie Preprocessor took 65.37ms. Allocated memory is still 148.9MB. Free memory was 100.4MB in the beginning and 96.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,223 INFO L158 Benchmark]: RCFGBuilder took 663.91ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 70.3MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,224 INFO L158 Benchmark]: BuchiAutomizer took 2338.78ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 70.3MB in the beginning and 116.0MB in the end (delta: -45.7MB). Peak memory consumption was 756.0kB. Max. memory is 16.1GB. [2024-11-20 22:52:46,224 INFO L158 Benchmark]: Witness Printer took 44.96ms. Allocated memory is still 192.9MB. Free memory was 116.0MB in the beginning and 112.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:52:46,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.65ms. Allocated memory is still 148.9MB. Free memory was 79.8MB in the beginning and 103.9MB in the end (delta: -24.1MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.18ms. Allocated memory is still 148.9MB. Free memory was 103.9MB in the beginning and 100.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.37ms. Allocated memory is still 148.9MB. Free memory was 100.4MB in the beginning and 96.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.91ms. Allocated memory is still 148.9MB. Free memory was 96.9MB in the beginning and 70.3MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2338.78ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 70.3MB in the beginning and 116.0MB in the end (delta: -45.7MB). Peak memory consumption was 756.0kB. Max. memory is 16.1GB. * Witness Printer took 44.96ms. Allocated memory is still 192.9MB. Free memory was 116.0MB in the beginning and 112.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] - GenericResultAtLocation [Line: 805]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 403 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 142 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 543 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543 mSDsluCounter, 1706 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1312 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 394 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 534]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L534] COND TRUE 1 [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp)) [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp___2) [L579] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L658] int tmp ; [L661] COND FALSE !(\read(pumpRunning)) [L676] CALL processEnvironment__wrappee__methaneQuery() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L676] RET processEnvironment__wrappee__methaneQuery() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; [L813] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND FALSE !(tmp___0 == 2) [L618] RET __utac_acc__Specification3_spec__1() [L579] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 534]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L534] COND TRUE 1 [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp)) [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp___2) [L579] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L658] int tmp ; [L661] COND FALSE !(\read(pumpRunning)) [L676] CALL processEnvironment__wrappee__methaneQuery() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L676] RET processEnvironment__wrappee__methaneQuery() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; [L813] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND FALSE !(tmp___0 == 2) [L618] RET __utac_acc__Specification3_spec__1() [L579] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-20 22:52:46,250 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)