./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 07:45:40,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:45:40,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:45:40,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:45:40,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:45:40,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:45:40,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:45:40,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:45:40,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:45:40,260 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:45:40,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:45:40,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:45:40,261 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:45:40,261 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:45:40,261 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:45:40,261 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:45:40,261 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:45:40,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:45:40,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:45:40,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:45:40,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:45:40,263 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:45:40,263 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/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 -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2025-01-10 07:45:40,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:45:40,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:45:40,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:45:40,506 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:45:40,506 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:45:40,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2025-01-10 07:45:42,050 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3073551d5/0134361f0e3445cdb67b9a7336ccf19e/FLAG3e2e7c5f7 [2025-01-10 07:45:42,410 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:45:42,416 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2025-01-10 07:45:42,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3073551d5/0134361f0e3445cdb67b9a7336ccf19e/FLAG3e2e7c5f7 [2025-01-10 07:45:42,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3073551d5/0134361f0e3445cdb67b9a7336ccf19e [2025-01-10 07:45:42,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:45:42,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:45:42,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:45:42,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:45:42,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:45:42,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:42,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235e7df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42, skipping insertion in model container [2025-01-10 07:45:42,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:42,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:45:42,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:45:42,929 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:45:42,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2025-01-10 07:45:42,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [316] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [386] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [395] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [761] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [860] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] [2025-01-10 07:45:42,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [990] [2025-01-10 07:45:42,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:45:42,976 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:45:42,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42 WrapperNode [2025-01-10 07:45:42,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:45:42,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:45:42,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:45:42,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:45:42,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:42,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,019 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 60, calls inlined = 178, statements flattened = 1204 [2025-01-10 07:45:43,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:45:43,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:45:43,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:45:43,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:45:43,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,030 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,043 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]. [2025-01-10 07:45:43,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,053 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:45:43,066 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:45:43,066 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:45:43,066 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:45:43,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (1/1) ... [2025-01-10 07:45:43,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:45:43,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:45:43,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 07:45:43,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 07:45:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:45:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:45:43,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:45:43,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:45:43,179 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:45:43,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:45:43,775 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2025-01-10 07:45:43,776 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:45:43,831 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:45:43,831 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-10 07:45:43,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:43 BoogieIcfgContainer [2025-01-10 07:45:43,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:45:43,832 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:45:43,832 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:45:43,838 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:45:43,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:43,839 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:45:42" (1/3) ... [2025-01-10 07:45:43,841 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7496ef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:45:43, skipping insertion in model container [2025-01-10 07:45:43,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:43,841 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:42" (2/3) ... [2025-01-10 07:45:43,841 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7496ef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:45:43, skipping insertion in model container [2025-01-10 07:45:43,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:43,841 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:43" (3/3) ... [2025-01-10 07:45:43,842 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2025-01-10 07:45:43,884 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:45:43,885 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:45:43,885 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:45:43,885 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:45:43,885 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:45:43,886 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:45:43,886 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:45:43,886 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:45:43,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.34472049689441) internal successors, (433), 322 states have internal predecessors, (433), 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) [2025-01-10 07:45:43,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2025-01-10 07:45:43,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:43,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:43,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:43,922 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:43,922 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:45:43,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.34472049689441) internal successors, (433), 322 states have internal predecessors, (433), 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) [2025-01-10 07:45:43,932 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2025-01-10 07:45:43,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:43,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:43,933 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:43,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:43,938 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:43,938 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "__utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:43,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:43,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2025-01-10 07:45:43,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:43,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496924754] [2025-01-10 07:45:43,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:43,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:43,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,012 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:44,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:44,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,041 INFO L85 PathProgramCache]: Analyzing trace with hash -674538316, now seen corresponding path program 1 times [2025-01-10 07:45:44,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6994605] [2025-01-10 07:45:44,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:44,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 07:45:44,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 07:45:44,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:44,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 07:45:44,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 07:45:44,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:44,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,062 INFO L85 PathProgramCache]: Analyzing trace with hash -630815120, now seen corresponding path program 1 times [2025-01-10 07:45:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611707699] [2025-01-10 07:45:44,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 07:45:44,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 07:45:44,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:45:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:45:44,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:45:44,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611707699] [2025-01-10 07:45:44,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611707699] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:45:44,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:45:44,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:45:44,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381207707] [2025-01-10 07:45:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:45:44,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:45:44,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 07:45:44,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 07:45:44,264 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.34472049689441) internal successors, (433), 322 states have internal predecessors, (433), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2025-01-10 07:45:44,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:45:44,415 INFO L93 Difference]: Finished difference Result 689 states and 911 transitions. [2025-01-10 07:45:44,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 689 states and 911 transitions. [2025-01-10 07:45:44,426 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 449 [2025-01-10 07:45:44,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 689 states to 659 states and 881 transitions. [2025-01-10 07:45:44,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 659 [2025-01-10 07:45:44,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 659 [2025-01-10 07:45:44,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 659 states and 881 transitions. [2025-01-10 07:45:44,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:45:44,439 INFO L218 hiAutomatonCegarLoop]: Abstraction has 659 states and 881 transitions. [2025-01-10 07:45:44,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states and 881 transitions. [2025-01-10 07:45:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 357. [2025-01-10 07:45:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 1.3361344537815125) internal successors, (477), 356 states have internal predecessors, (477), 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) [2025-01-10 07:45:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 477 transitions. [2025-01-10 07:45:44,486 INFO L240 hiAutomatonCegarLoop]: Abstraction has 357 states and 477 transitions. [2025-01-10 07:45:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 07:45:44,489 INFO L432 stractBuchiCegarLoop]: Abstraction has 357 states and 477 transitions. [2025-01-10 07:45:44,490 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:45:44,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 357 states and 477 transitions. [2025-01-10 07:45:44,493 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2025-01-10 07:45:44,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:44,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:44,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:44,494 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] [2025-01-10 07:45:44,494 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:44,494 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "isMethaneAlarm_#t~ret8#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret8#1;havoc isMethaneAlarm_#t~ret8#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1;" "processEnvironment_#t~ret6#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret8#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~2#1 := processEnvironment_#t~ret6#1;havoc processEnvironment_#t~ret6#1;" "assume 0 != processEnvironment_~tmp~2#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "__utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:44,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2025-01-10 07:45:44,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687280562] [2025-01-10 07:45:44,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:45:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,514 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,528 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:45:44,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,528 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:44,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:44,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1937970077, now seen corresponding path program 1 times [2025-01-10 07:45:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164805248] [2025-01-10 07:45:44,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:44,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 07:45:44,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 07:45:44,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:45:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:45:44,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:45:44,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164805248] [2025-01-10 07:45:44,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164805248] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:45:44,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:45:44,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:45:44,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683061815] [2025-01-10 07:45:44,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:45:44,601 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:45:44,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:45:44,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:45:44,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:45:44,605 INFO L87 Difference]: Start difference. First operand 357 states and 477 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-01-10 07:45:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:45:44,767 INFO L93 Difference]: Finished difference Result 357 states and 451 transitions. [2025-01-10 07:45:44,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 451 transitions. [2025-01-10 07:45:44,772 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2025-01-10 07:45:44,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 451 transitions. [2025-01-10 07:45:44,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2025-01-10 07:45:44,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2025-01-10 07:45:44,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 451 transitions. [2025-01-10 07:45:44,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:45:44,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 357 states and 451 transitions. [2025-01-10 07:45:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 451 transitions. [2025-01-10 07:45:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2025-01-10 07:45:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 1.2633053221288515) internal successors, (451), 356 states have internal predecessors, (451), 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) [2025-01-10 07:45:44,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 451 transitions. [2025-01-10 07:45:44,801 INFO L240 hiAutomatonCegarLoop]: Abstraction has 357 states and 451 transitions. [2025-01-10 07:45:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:45:44,802 INFO L432 stractBuchiCegarLoop]: Abstraction has 357 states and 451 transitions. [2025-01-10 07:45:44,803 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:45:44,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 357 states and 451 transitions. [2025-01-10 07:45:44,804 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2025-01-10 07:45:44,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:44,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:44,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:44,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:44,809 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:44,809 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1;" "assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~0#1 := 1;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "__utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:44,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2025-01-10 07:45:44,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132487895] [2025-01-10 07:45:44,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:45:44,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,823 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,830 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,832 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 07:45:44,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,832 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:44,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:44,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:44,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:44,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:44,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:44,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1377155473, now seen corresponding path program 1 times [2025-01-10 07:45:44,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:44,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032246014] [2025-01-10 07:45:44,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:44,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:44,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 07:45:44,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 07:45:44,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:44,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:45:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 07:45:44,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:45:44,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032246014] [2025-01-10 07:45:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032246014] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:45:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:45:44,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 07:45:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573711045] [2025-01-10 07:45:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:45:44,929 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:45:44,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:45:44,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 07:45:44,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 07:45:44,930 INFO L87 Difference]: Start difference. First operand 357 states and 451 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.0) 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) [2025-01-10 07:45:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:45:45,013 INFO L93 Difference]: Finished difference Result 375 states and 469 transitions. [2025-01-10 07:45:45,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 375 states and 469 transitions. [2025-01-10 07:45:45,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2025-01-10 07:45:45,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 375 states to 375 states and 469 transitions. [2025-01-10 07:45:45,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 375 [2025-01-10 07:45:45,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 375 [2025-01-10 07:45:45,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 375 states and 469 transitions. [2025-01-10 07:45:45,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:45:45,020 INFO L218 hiAutomatonCegarLoop]: Abstraction has 375 states and 469 transitions. [2025-01-10 07:45:45,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states and 469 transitions. [2025-01-10 07:45:45,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-01-10 07:45:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 375 states have (on average 1.2506666666666666) internal successors, (469), 374 states have internal predecessors, (469), 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) [2025-01-10 07:45:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 469 transitions. [2025-01-10 07:45:45,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 375 states and 469 transitions. [2025-01-10 07:45:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 07:45:45,036 INFO L432 stractBuchiCegarLoop]: Abstraction has 375 states and 469 transitions. [2025-01-10 07:45:45,039 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 07:45:45,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 375 states and 469 transitions. [2025-01-10 07:45:45,041 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2025-01-10 07:45:45,041 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:45,041 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:45,042 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:45,042 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:45,042 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret46#1, main_~retValue_acc~7#1, main_~tmp~10#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1;" "main_#t~ret46#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret46#1;havoc main_#t~ret46#1;" "assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:45,042 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet19#1;test_~tmp~6#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp~6#1);" "havoc test_#t~nondet20#1;test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1;" "assume !(0 != test_~tmp___0~2#1);" "havoc test_#t~nondet21#1;test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~10#1;" "isHighWaterLevel_#t~ret17#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~10#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret17#1;havoc isHighWaterLevel_#t~ret17#1;" "assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret4#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret17#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~0#1 := processEnvironment__wrappee__highWaterSensor_#t~ret4#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret4#1, processEnvironment__wrappee__highWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret5#1, processEnvironment__wrappee__methaneQuery_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret6#1, processEnvironment_~tmp~2#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~11#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1;" "__utac_acc__Specification1_spec__1_#t~ret47#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~11#1 := __utac_acc__Specification1_spec__1_#t~ret47#1;havoc __utac_acc__Specification1_spec__1_#t~ret47#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_~tmp~11#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:45,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2025-01-10 07:45:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:45,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617995188] [2025-01-10 07:45:45,043 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 07:45:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:45,050 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 7 statements into 2 equivalence classes. [2025-01-10 07:45:45,052 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:45,052 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 07:45:45,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:45,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:45,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:45,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:45,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1963961487, now seen corresponding path program 1 times [2025-01-10 07:45:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:45,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583925056] [2025-01-10 07:45:45,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:45,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:45,061 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 07:45:45,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 07:45:45,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,063 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:45,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 07:45:45,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 07:45:45,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:45,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash 712979539, now seen corresponding path program 1 times [2025-01-10 07:45:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001902866] [2025-01-10 07:45:45,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:45,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 07:45:45,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 07:45:45,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,075 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:45,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 07:45:45,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 07:45:45,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:45,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:45,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:45,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,740 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:45,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:45,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:45,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:45,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:45,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:45:45 BoogieIcfgContainer [2025-01-10 07:45:45,781 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:45:45,781 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:45:45,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:45:45,782 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:45:45,782 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:43" (3/4) ... [2025-01-10 07:45:45,783 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 07:45:45,811 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 07:45:45,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:45:45,812 INFO L158 Benchmark]: Toolchain (without parser) took 3171.88ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 83.7MB in the end (delta: 28.6MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2025-01-10 07:45:45,812 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:45,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.31ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 93.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:45:45,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.42ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 89.3MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:45:45,812 INFO L158 Benchmark]: Boogie Preprocessor took 46.05ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 84.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:45,813 INFO L158 Benchmark]: RCFGBuilder took 765.48ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 108.0MB in the end (delta: -24.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2025-01-10 07:45:45,813 INFO L158 Benchmark]: BuchiAutomizer took 1948.90ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.3MB in the end (delta: 20.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2025-01-10 07:45:45,813 INFO L158 Benchmark]: Witness Printer took 29.52ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 83.7MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:45,814 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.31ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 93.4MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.42ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 89.3MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.05ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 84.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 765.48ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 108.0MB in the end (delta: -24.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1948.90ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.3MB in the end (delta: 20.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 29.52ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 83.7MB in the end (delta: 3.6MB). There was no memory consumed. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 316]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [316] - GenericResultAtLocation [Line: 386]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [386] - GenericResultAtLocation [Line: 395]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [395] - GenericResultAtLocation [Line: 761]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [761] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [860] - GenericResultAtLocation [Line: 886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [886] - GenericResultAtLocation [Line: 990]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [990] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 375 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 302 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, 1441 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1441 mSDsluCounter, 2992 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1977 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 1015 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 332]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L829] CALL test() [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L375] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L867] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L375] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 332]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L838] int retValue_acc ; [L839] int tmp ; [L843] FCALL select_helpers() [L844] FCALL select_features() [L845] CALL, EXPR valid_product() [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] RET, EXPR valid_product() [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L849] FCALL setup() [L850] CALL runTest() [L829] CALL test() [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L375] CALL timeShift() [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L168] CALL processEnvironment__wrappee__methaneQuery() [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L142] CALL processEnvironment__wrappee__highWaterSensor() [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L111] FCALL processEnvironment__wrappee__base() [L142] RET processEnvironment__wrappee__highWaterSensor() [L168] RET processEnvironment__wrappee__methaneQuery() [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L867] CALL, EXPR isMethaneLevelCritical() [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] RET, EXPR isMethaneLevelCritical() [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) [L84] RET __utac_acc__Specification1_spec__1() [L375] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-01-10 07:45:45,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)