./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_product44.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 cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 07:45:24,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 07:45:24,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-01-10 07:45:24,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 07:45:24,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 07:45:24,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 07:45:24,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 07:45:24,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 07:45:24,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 07:45:24,921 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 07:45:24,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 07:45:24,922 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 07:45:24,922 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 07:45:24,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 07:45:24,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 07:45:24,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 07:45:24,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 07:45:24,923 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 07:45:24,924 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 -> cb53e49317620dbde25b1d7f6fa7078b4950e13e4d138c624b27be1c4ee0f3ad [2025-01-10 07:45:25,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 07:45:25,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 07:45:25,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 07:45:25,140 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 07:45:25,140 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 07:45:25,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2025-01-10 07:45:26,259 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdc257851/da359a6e6379467fabb1a5f6108c2a3e/FLAG30980047f [2025-01-10 07:45:26,543 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 07:45:26,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2025-01-10 07:45:26,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdc257851/da359a6e6379467fabb1a5f6108c2a3e/FLAG30980047f [2025-01-10 07:45:26,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bdc257851/da359a6e6379467fabb1a5f6108c2a3e [2025-01-10 07:45:26,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 07:45:26,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 07:45:26,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 07:45:26,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 07:45:26,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 07:45:26,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb036d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26, skipping insertion in model container [2025-01-10 07:45:26,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 07:45:26,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:45:26,832 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 07:45:26,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] [2025-01-10 07:45:26,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] [2025-01-10 07:45:26,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 07:45:26,912 INFO L204 MainTranslator]: Completed translation [2025-01-10 07:45:26,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26 WrapperNode [2025-01-10 07:45:26,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 07:45:26,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 07:45:26,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 07:45:26,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 07:45:26,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,957 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 52, calls inlined = 62, statements flattened = 406 [2025-01-10 07:45:26,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 07:45:26,961 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 07:45:26,961 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 07:45:26,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 07:45:26,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,987 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 07:45:26,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,992 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:26,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:27,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:27,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 07:45:27,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 07:45:27,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 07:45:27,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 07:45:27,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (1/1) ... [2025-01-10 07:45:27,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 07:45:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 07:45:27,037 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 07:45:27,039 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 07:45:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 07:45:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 07:45:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 07:45:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 07:45:27,112 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 07:45:27,114 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 07:45:27,348 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-01-10 07:45:27,348 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 07:45:27,357 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 07:45:27,357 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-10 07:45:27,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:27 BoogieIcfgContainer [2025-01-10 07:45:27,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 07:45:27,358 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 07:45:27,359 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 07:45:27,362 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 07:45:27,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:27,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 07:45:26" (1/3) ... [2025-01-10 07:45:27,364 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66245690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:45:27, skipping insertion in model container [2025-01-10 07:45:27,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:27,364 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:45:26" (2/3) ... [2025-01-10 07:45:27,365 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66245690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 07:45:27, skipping insertion in model container [2025-01-10 07:45:27,365 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 07:45:27,365 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:27" (3/3) ... [2025-01-10 07:45:27,366 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2025-01-10 07:45:27,407 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 07:45:27,407 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 07:45:27,407 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 07:45:27,407 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 07:45:27,407 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 07:45:27,407 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 07:45:27,407 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 07:45:27,407 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 07:45:27,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 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 07:45:27,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2025-01-10 07:45:27,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:27,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:27,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:27,426 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:27,426 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 07:45:27,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 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 07:45:27,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2025-01-10 07:45:27,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:27,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:27,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:27,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:27,434 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:27,434 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet30#1;test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___1~0#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~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2025-01-10 07:45:27,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:27,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029758106] [2025-01-10 07:45:27,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:27,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:27,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:27,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:27,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,505 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:27,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:27,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:27,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:27,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:27,534 INFO L85 PathProgramCache]: Analyzing trace with hash 819459037, now seen corresponding path program 1 times [2025-01-10 07:45:27,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:27,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626218020] [2025-01-10 07:45:27,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:27,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:27,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 07:45:27,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 07:45:27,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,546 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:27,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 07:45:27,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 07:45:27,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:27,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2120089183, now seen corresponding path program 1 times [2025-01-10 07:45:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:27,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512758814] [2025-01-10 07:45:27,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:27,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:27,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 07:45:27,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 07:45:27,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:45:27,720 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 07:45:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:45:27,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512758814] [2025-01-10 07:45:27,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512758814] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:45:27,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:45:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 07:45:27,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035219298] [2025-01-10 07:45:27,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:45:27,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:45:27,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 07:45:27,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 07:45:27,807 INFO L87 Difference]: Start difference. First operand has 123 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 122 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 07:45:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:45:27,911 INFO L93 Difference]: Finished difference Result 288 states and 372 transitions. [2025-01-10 07:45:27,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 372 transitions. [2025-01-10 07:45:27,918 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 185 [2025-01-10 07:45:27,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 258 states and 342 transitions. [2025-01-10 07:45:27,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2025-01-10 07:45:27,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2025-01-10 07:45:27,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 258 states and 342 transitions. [2025-01-10 07:45:27,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:45:27,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 258 states and 342 transitions. [2025-01-10 07:45:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states and 342 transitions. [2025-01-10 07:45:27,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 157. [2025-01-10 07:45:27,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 156 states have internal predecessors, (208), 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 07:45:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 208 transitions. [2025-01-10 07:45:27,950 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 208 transitions. [2025-01-10 07:45:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 07:45:27,953 INFO L432 stractBuchiCegarLoop]: Abstraction has 157 states and 208 transitions. [2025-01-10 07:45:27,953 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 07:45:27,953 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 157 states and 208 transitions. [2025-01-10 07:45:27,954 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 111 [2025-01-10 07:45:27,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:27,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:27,955 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:27,955 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] [2025-01-10 07:45:27,955 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:27,955 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:27,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:27,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2025-01-10 07:45:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:27,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942576277] [2025-01-10 07:45:27,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 07:45:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:27,961 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:27,965 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:27,965 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 07:45:27,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,965 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:27,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:27,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:27,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:27,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:27,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash 297131107, now seen corresponding path program 1 times [2025-01-10 07:45:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:27,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027370454] [2025-01-10 07:45:27,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:27,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:27,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 07:45:27,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 07:45:27,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:27,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 07:45:27,996 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 07:45:27,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 07:45:27,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027370454] [2025-01-10 07:45:27,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027370454] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 07:45:27,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 07:45:27,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 07:45:27,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894134889] [2025-01-10 07:45:27,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 07:45:27,998 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-01-10 07:45:27,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 07:45:27,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 07:45:27,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 07:45:28,000 INFO L87 Difference]: Start difference. First operand 157 states and 208 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 07:45:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 07:45:28,061 INFO L93 Difference]: Finished difference Result 206 states and 261 transitions. [2025-01-10 07:45:28,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 261 transitions. [2025-01-10 07:45:28,062 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2025-01-10 07:45:28,064 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 206 states and 261 transitions. [2025-01-10 07:45:28,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 206 [2025-01-10 07:45:28,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 206 [2025-01-10 07:45:28,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 206 states and 261 transitions. [2025-01-10 07:45:28,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 07:45:28,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-01-10 07:45:28,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states and 261 transitions. [2025-01-10 07:45:28,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2025-01-10 07:45:28,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.266990291262136) internal successors, (261), 205 states have internal predecessors, (261), 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 07:45:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 261 transitions. [2025-01-10 07:45:28,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-01-10 07:45:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 07:45:28,077 INFO L432 stractBuchiCegarLoop]: Abstraction has 206 states and 261 transitions. [2025-01-10 07:45:28,077 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 07:45:28,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 261 transitions. [2025-01-10 07:45:28,079 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 149 [2025-01-10 07:45:28,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 07:45:28,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 07:45:28,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 07:45:28,079 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] [2025-01-10 07:45:28,079 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);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2025-01-10 07:45:28,079 INFO L754 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet27#1;test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet28#1;test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet29#1;test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1;" "assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1;" "processEnvironment_#t~ret31#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret31#1;havoc processEnvironment_#t~ret31#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret31#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "__utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1;" "assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification1_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2025-01-10 07:45:28,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2025-01-10 07:45:28,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:28,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805795417] [2025-01-10 07:45:28,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 07:45:28,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:28,088 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:28,092 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:28,092 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 07:45:28,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,092 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:28,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:28,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:28,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:28,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash 899053387, now seen corresponding path program 1 times [2025-01-10 07:45:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:28,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476235836] [2025-01-10 07:45:28,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:28,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 07:45:28,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 07:45:28,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,110 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:28,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 07:45:28,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 07:45:28,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:28,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 07:45:28,120 INFO L85 PathProgramCache]: Analyzing trace with hash -351951353, now seen corresponding path program 1 times [2025-01-10 07:45:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 07:45:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740047952] [2025-01-10 07:45:28,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 07:45:28,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 07:45:28,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:45:28,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:45:28,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,131 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:28,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 07:45:28,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 07:45:28,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 07:45:28,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:28,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:28,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,785 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 07:45:28,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 07:45:28,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 07:45:28,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 07:45:28,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 07:45:28,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 07:45:28 BoogieIcfgContainer [2025-01-10 07:45:28,829 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 07:45:28,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 07:45:28,830 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 07:45:28,830 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 07:45:28,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:45:27" (3/4) ... [2025-01-10 07:45:28,832 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-01-10 07:45:28,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 07:45:28,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 07:45:28,872 INFO L158 Benchmark]: Toolchain (without parser) took 2296.11ms. Allocated memory is still 167.8MB. Free memory was 128.8MB in the beginning and 70.8MB in the end (delta: 58.1MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2025-01-10 07:45:28,873 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:28,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.87ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 110.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:45:28,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.62ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:28,873 INFO L158 Benchmark]: Boogie Preprocessor took 41.52ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 105.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 07:45:28,873 INFO L158 Benchmark]: RCFGBuilder took 354.84ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 84.7MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 07:45:28,874 INFO L158 Benchmark]: BuchiAutomizer took 1470.61ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 74.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2025-01-10 07:45:28,874 INFO L158 Benchmark]: Witness Printer took 40.29ms. Allocated memory is still 167.8MB. Free memory was 73.8MB in the beginning and 70.8MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 07:45:28,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.87ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 110.3MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.62ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.52ms. Allocated memory is still 167.8MB. Free memory was 108.2MB in the beginning and 105.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 354.84ms. Allocated memory is still 167.8MB. Free memory was 105.6MB in the beginning and 84.7MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1470.61ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 74.8MB in the end (delta: 9.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Witness Printer took 40.29ms. Allocated memory is still 167.8MB. Free memory was 73.8MB in the beginning and 70.8MB in the end (delta: 3.0MB). 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 701]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [701] - GenericResultAtLocation [Line: 796]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [796] - GenericResultAtLocation [Line: 822]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [822] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [860] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 206 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 101 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, 515 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 848 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 560 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 288 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 443]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() [L516] COND FALSE !(\read(pumpRunning)) [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; [L786] COND TRUE waterLevel < 2 [L787] retValue_acc = 1 [L788] return (retValue_acc); [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND TRUE \read(tmp) [L669] tmp___0 = 0 [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND FALSE !(\read(tmp)) [L558] FCALL processEnvironment__wrappee__base() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; [L803] CALL, EXPR isMethaneLevelCritical() [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 443]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L508] int pumpRunning = 0; [L509] int systemActive = 1; [L703] int waterLevel = 1; [L704] int methaneLevelCritical = 0; [L861] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L935] int tmp ; [L939] FCALL select_helpers() [L940] FCALL select_features() [L941] CALL, EXPR valid_product() [L852] int retValue_acc ; [L855] retValue_acc = 1 [L856] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] RET, EXPR valid_product() [L941] tmp = valid_product() [L943] COND TRUE \read(tmp) [L945] FCALL setup() [L946] CALL runTest() [L928] CALL test() [L432] int splverifierCounter ; [L433] int tmp ; [L434] int tmp___0 ; [L435] int tmp___1 ; [L436] int tmp___2 ; [L439] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L443] COND TRUE splverifierCounter < 4 [L449] tmp = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp)) [L459] tmp___0 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___0)) [L469] tmp___2 = __VERIFIER_nondet_int() [L471] COND TRUE \read(tmp___2) [L473] CALL startSystem() [L697] systemActive = 1 [L473] RET startSystem() [L488] CALL timeShift() [L516] COND FALSE !(\read(pumpRunning)) [L523] COND TRUE \read(systemActive) [L525] CALL processEnvironment() [L545] int tmp ; [L548] COND TRUE ! pumpRunning [L550] CALL, EXPR isHighWaterLevel() [L660] int retValue_acc ; [L661] int tmp ; [L662] int tmp___0 ; [L666] CALL, EXPR isHighWaterSensorDry() [L783] int retValue_acc ; [L786] COND TRUE waterLevel < 2 [L787] retValue_acc = 1 [L788] return (retValue_acc); [L666] RET, EXPR isHighWaterSensorDry() [L666] tmp = isHighWaterSensorDry() [L668] COND TRUE \read(tmp) [L669] tmp___0 = 0 [L673] retValue_acc = tmp___0 [L674] return (retValue_acc); [L550] RET, EXPR isHighWaterLevel() [L550] tmp = isHighWaterLevel() [L552] COND FALSE !(\read(tmp)) [L558] FCALL processEnvironment__wrappee__base() [L525] RET processEnvironment() [L531] CALL __utac_acc__Specification1_spec__1() [L798] int tmp ; [L799] int tmp___0 ; [L803] CALL, EXPR isMethaneLevelCritical() [L742] int retValue_acc ; [L745] retValue_acc = methaneLevelCritical [L746] return (retValue_acc); [L803] RET, EXPR isMethaneLevelCritical() [L803] tmp = isMethaneLevelCritical() [L805] COND FALSE !(\read(tmp)) [L531] RET __utac_acc__Specification1_spec__1() [L488] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-01-10 07:45:28,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)