./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:57:20,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:57:20,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:57:20,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:57:20,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:57:20,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:57:20,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:57:20,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:57:20,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:57:20,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:57:20,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:57:20,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:57:20,428 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:57:20,430 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:57:20,430 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:57:20,430 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:57:20,430 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:57:20,430 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:57:20,431 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:57:20,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:57:20,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:57:20,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:57:20,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:57:20,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:57:20,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:57:20,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:57:20,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:57:20,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:57:20,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:57:20,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:57:20,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:57:20,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:57:20,435 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:57:20,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:57:20,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:57:20,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:57:20,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:57:20,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:57:20,436 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:57:20,436 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2024-10-12 00:57:20,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:57:20,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:57:20,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:57:20,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:57:20,677 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:57:20,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-10-12 00:57:21,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:57:22,113 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:57:22,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2024-10-12 00:57:22,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4956a2d3c/16923502ca2b434085d471d7980814fd/FLAGcf1709d5d [2024-10-12 00:57:22,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4956a2d3c/16923502ca2b434085d471d7980814fd [2024-10-12 00:57:22,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:57:22,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:57:22,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:57:22,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:57:22,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:57:22,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c5bf96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22, skipping insertion in model container [2024-10-12 00:57:22,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:57:22,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:57:22,802 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:57:22,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-10-12 00:57:22,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2024-10-12 00:57:22,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2024-10-12 00:57:22,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] [2024-10-12 00:57:22,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] [2024-10-12 00:57:22,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] [2024-10-12 00:57:22,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] [2024-10-12 00:57:22,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] [2024-10-12 00:57:22,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:57:22,928 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:57:22,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22 WrapperNode [2024-10-12 00:57:22,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:57:22,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:57:22,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:57:22,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:57:22,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,962 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 48, calls inlined = 53, statements flattened = 372 [2024-10-12 00:57:22,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:57:22,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:57:22,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:57:22,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:57:22,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,995 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:57:22,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:22,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:57:23,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:57:23,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:57:23,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:57:23,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (1/1) ... [2024-10-12 00:57:23,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:57:23,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:57:23,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:57:23,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:57:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:57:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:57:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:57:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:57:23,153 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:57:23,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:57:23,386 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-10-12 00:57:23,387 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:57:23,400 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:57:23,403 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 00:57:23,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:57:23 BoogieIcfgContainer [2024-10-12 00:57:23,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:57:23,404 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:57:23,404 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:57:23,407 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:57:23,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:57:23,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:57:22" (1/3) ... [2024-10-12 00:57:23,408 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e527ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:57:23, skipping insertion in model container [2024-10-12 00:57:23,408 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:57:23,408 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:57:22" (2/3) ... [2024-10-12 00:57:23,409 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74e527ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:57:23, skipping insertion in model container [2024-10-12 00:57:23,409 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:57:23,409 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:57:23" (3/3) ... [2024-10-12 00:57:23,410 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2024-10-12 00:57:23,455 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:57:23,455 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:57:23,455 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:57:23,455 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:57:23,455 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:57:23,455 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:57:23,455 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:57:23,456 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:57:23,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 113 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:23,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2024-10-12 00:57:23,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:23,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:23,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:23,481 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:23,481 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:57:23,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 113 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:23,489 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 72 [2024-10-12 00:57:23,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:23,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:23,490 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:23,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:23,496 INFO L745 eck$LassoCheckResult]: Stem: 32#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 43#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 25#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 98#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 89#valid_product_returnLabel#1true main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 28#L239true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 76#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 15#L638-2true [2024-10-12 00:57:23,497 INFO L747 eck$LassoCheckResult]: Loop: 15#L638-2true assume !false; 37#L639true assume test_~splverifierCounter~0#1 < 4; 33#L640true havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 114#L648true assume !(0 != test_~tmp~4#1); 13#L648-2true havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 26#L658true assume !(0 != test_~tmp___0~0#1); 99#L658-2true havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 34#L668true assume 0 != test_~tmp___2~0#1; 57#L674-2true assume { :begin_inline_timeShift } true; 60#L704true assume !(0 != ~pumpRunning~0); 46#L704-2true assume !(0 != ~systemActive~0); 102#L711-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 111#isMethaneLevelCritical_returnLabel#1true __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 81#L858true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 80#L864-1true havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 70#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 15#L638-2true [2024-10-12 00:57:23,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:23,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-10-12 00:57:23,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638703544] [2024-10-12 00:57:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:23,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:23,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:23,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:23,640 INFO L85 PathProgramCache]: Analyzing trace with hash -680982058, now seen corresponding path program 1 times [2024-10-12 00:57:23,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:23,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419325055] [2024-10-12 00:57:23,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:23,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:23,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:23,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:23,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash 674437018, now seen corresponding path program 1 times [2024-10-12 00:57:23,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:23,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109977581] [2024-10-12 00:57:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:57:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:57:23,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:57:23,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109977581] [2024-10-12 00:57:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109977581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:57:23,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:57:23,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:57:23,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831501274] [2024-10-12 00:57:23,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:57:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:57:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:57:23,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:57:23,929 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 113 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:23,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:57:23,997 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2024-10-12 00:57:24,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 139 transitions. [2024-10-12 00:57:24,003 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-10-12 00:57:24,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 98 states and 129 transitions. [2024-10-12 00:57:24,009 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2024-10-12 00:57:24,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2024-10-12 00:57:24,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 129 transitions. [2024-10-12 00:57:24,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:57:24,011 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 129 transitions. [2024-10-12 00:57:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 129 transitions. [2024-10-12 00:57:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-10-12 00:57:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 98 states have (on average 1.316326530612245) internal successors, (129), 97 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 129 transitions. [2024-10-12 00:57:24,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 129 transitions. [2024-10-12 00:57:24,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:57:24,038 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 129 transitions. [2024-10-12 00:57:24,039 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:57:24,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 129 transitions. [2024-10-12 00:57:24,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2024-10-12 00:57:24,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:24,040 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:24,040 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:24,041 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] [2024-10-12 00:57:24,041 INFO L745 eck$LassoCheckResult]: Stem: 283#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 284#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 275#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 276#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 332#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 278#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 279#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 257#L638-2 [2024-10-12 00:57:24,041 INFO L747 eck$LassoCheckResult]: Loop: 257#L638-2 assume !false; 258#L639 assume test_~splverifierCounter~0#1 < 4; 285#L640 havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 286#L648 assume !(0 != test_~tmp~4#1); 253#L648-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 254#L658 assume !(0 != test_~tmp___0~0#1); 247#L658-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 287#L668 assume 0 != test_~tmp___2~0#1; 270#L674-2 assume { :begin_inline_timeShift } true; 308#L704 assume !(0 != ~pumpRunning~0); 271#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 290#L736 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 291#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 250#L736-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 322#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 335#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 327#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 282#L864-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 321#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 257#L638-2 [2024-10-12 00:57:24,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-10-12 00:57:24,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952306232] [2024-10-12 00:57:24,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash -232261515, now seen corresponding path program 1 times [2024-10-12 00:57:24,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792401436] [2024-10-12 00:57:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:57:24,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:57:24,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:57:24,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792401436] [2024-10-12 00:57:24,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792401436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:57:24,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:57:24,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:57:24,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899876611] [2024-10-12 00:57:24,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:57:24,104 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:57:24,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:57:24,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:57:24,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:57:24,105 INFO L87 Difference]: Start difference. First operand 98 states and 129 transitions. cyclomatic complexity: 33 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) [2024-10-12 00:57:24,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:57:24,154 INFO L93 Difference]: Finished difference Result 156 states and 200 transitions. [2024-10-12 00:57:24,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 200 transitions. [2024-10-12 00:57:24,159 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2024-10-12 00:57:24,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 156 states and 200 transitions. [2024-10-12 00:57:24,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2024-10-12 00:57:24,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 156 [2024-10-12 00:57:24,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 200 transitions. [2024-10-12 00:57:24,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:57:24,165 INFO L218 hiAutomatonCegarLoop]: Abstraction has 156 states and 200 transitions. [2024-10-12 00:57:24,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states and 200 transitions. [2024-10-12 00:57:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-10-12 00:57:24,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 156 states have (on average 1.2820512820512822) internal successors, (200), 155 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 200 transitions. [2024-10-12 00:57:24,173 INFO L240 hiAutomatonCegarLoop]: Abstraction has 156 states and 200 transitions. [2024-10-12 00:57:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:57:24,174 INFO L425 stractBuchiCegarLoop]: Abstraction has 156 states and 200 transitions. [2024-10-12 00:57:24,174 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:57:24,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 156 states and 200 transitions. [2024-10-12 00:57:24,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2024-10-12 00:57:24,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:24,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:24,176 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:24,176 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] [2024-10-12 00:57:24,176 INFO L745 eck$LassoCheckResult]: Stem: 544#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 545#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 536#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 537#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 599#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 539#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 540#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 518#L638-2 [2024-10-12 00:57:24,176 INFO L747 eck$LassoCheckResult]: Loop: 518#L638-2 assume !false; 519#L639 assume test_~splverifierCounter~0#1 < 4; 546#L640 havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 547#L648 assume !(0 != test_~tmp~4#1); 514#L648-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 515#L658 assume !(0 != test_~tmp___0~0#1); 507#L658-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 548#L668 assume 0 != test_~tmp___2~0#1; 531#L674-2 assume { :begin_inline_timeShift } true; 571#L704 assume !(0 != ~pumpRunning~0); 560#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 551#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 552#L140 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 528#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 529#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 549#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 602#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 566#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 522#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 523#L736-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 586#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 604#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 592#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 543#L864-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 585#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 518#L638-2 [2024-10-12 00:57:24,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-10-12 00:57:24,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570862697] [2024-10-12 00:57:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1748480961, now seen corresponding path program 1 times [2024-10-12 00:57:24,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633289721] [2024-10-12 00:57:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:57:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:57:24,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:57:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633289721] [2024-10-12 00:57:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633289721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:57:24,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:57:24,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:57:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061708154] [2024-10-12 00:57:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:57:24,273 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:57:24,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:57:24,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:57:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:57:24,274 INFO L87 Difference]: Start difference. First operand 156 states and 200 transitions. cyclomatic complexity: 46 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:57:24,323 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2024-10-12 00:57:24,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 206 transitions. [2024-10-12 00:57:24,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2024-10-12 00:57:24,325 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 162 states and 206 transitions. [2024-10-12 00:57:24,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162 [2024-10-12 00:57:24,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 162 [2024-10-12 00:57:24,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 162 states and 206 transitions. [2024-10-12 00:57:24,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:57:24,327 INFO L218 hiAutomatonCegarLoop]: Abstraction has 162 states and 206 transitions. [2024-10-12 00:57:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states and 206 transitions. [2024-10-12 00:57:24,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-12 00:57:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 162 states have (on average 1.271604938271605) internal successors, (206), 161 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 206 transitions. [2024-10-12 00:57:24,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 162 states and 206 transitions. [2024-10-12 00:57:24,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:57:24,337 INFO L425 stractBuchiCegarLoop]: Abstraction has 162 states and 206 transitions. [2024-10-12 00:57:24,337 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:57:24,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162 states and 206 transitions. [2024-10-12 00:57:24,338 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2024-10-12 00:57:24,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:24,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:24,338 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:24,338 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] [2024-10-12 00:57:24,339 INFO L745 eck$LassoCheckResult]: Stem: 870#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 871#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 860#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 861#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 930#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 863#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 864#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 842#L638-2 [2024-10-12 00:57:24,339 INFO L747 eck$LassoCheckResult]: Loop: 842#L638-2 assume !false; 843#L639 assume test_~splverifierCounter~0#1 < 4; 875#L640 havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 983#L648 assume !(0 != test_~tmp~4#1); 981#L648-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 979#L658 assume !(0 != test_~tmp___0~0#1); 977#L658-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 976#L668 assume 0 != test_~tmp___2~0#1; 940#L674-2 assume { :begin_inline_timeShift } true; 902#L704 assume !(0 != ~pumpRunning~0); 886#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 876#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 877#L140 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 852#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 853#L838 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 874#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 933#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 893#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 846#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 847#L736-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 935#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 936#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 921#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 867#L864-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 914#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 842#L638-2 [2024-10-12 00:57:24,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2024-10-12 00:57:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902237086] [2024-10-12 00:57:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1047416383, now seen corresponding path program 1 times [2024-10-12 00:57:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649659632] [2024-10-12 00:57:24,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:57:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:57:24,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:57:24,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649659632] [2024-10-12 00:57:24,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649659632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:57:24,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:57:24,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:57:24,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065369895] [2024-10-12 00:57:24,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:57:24,418 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:57:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:57:24,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:57:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:57:24,420 INFO L87 Difference]: Start difference. First operand 162 states and 206 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:57:24,476 INFO L93 Difference]: Finished difference Result 171 states and 215 transitions. [2024-10-12 00:57:24,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 215 transitions. [2024-10-12 00:57:24,477 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-10-12 00:57:24,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 171 states and 215 transitions. [2024-10-12 00:57:24,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2024-10-12 00:57:24,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2024-10-12 00:57:24,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 215 transitions. [2024-10-12 00:57:24,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:57:24,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-12 00:57:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 215 transitions. [2024-10-12 00:57:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2024-10-12 00:57:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2573099415204678) internal successors, (215), 170 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2024-10-12 00:57:24,490 INFO L240 hiAutomatonCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-12 00:57:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:57:24,495 INFO L425 stractBuchiCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-12 00:57:24,495 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:57:24,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 215 transitions. [2024-10-12 00:57:24,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-10-12 00:57:24,496 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:24,496 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:24,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:24,496 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] [2024-10-12 00:57:24,496 INFO L745 eck$LassoCheckResult]: Stem: 1211#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1212#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1200#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1201#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1269#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1204#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1205#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1183#L638-2 [2024-10-12 00:57:24,496 INFO L747 eck$LassoCheckResult]: Loop: 1183#L638-2 assume !false; 1184#L639 assume test_~splverifierCounter~0#1 < 4; 1209#L640 havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1210#L648 assume !(0 != test_~tmp~4#1); 1179#L648-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1180#L658 assume !(0 != test_~tmp___0~0#1); 1275#L658-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1215#L668 assume 0 != test_~tmp___2~0#1; 1195#L674-2 assume { :begin_inline_timeShift } true; 1240#L704 assume !(0 != ~pumpRunning~0); 1226#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1217#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1218#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1192#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1193#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1272#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1273#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1274#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1187#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1188#L736-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1256#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1277#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1262#L858 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 1208#L864-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1255#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1183#L638-2 [2024-10-12 00:57:24,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2024-10-12 00:57:24,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171495849] [2024-10-12 00:57:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,506 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1161674947, now seen corresponding path program 1 times [2024-10-12 00:57:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759382153] [2024-10-12 00:57:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1882287609, now seen corresponding path program 1 times [2024-10-12 00:57:24,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580338866] [2024-10-12 00:57:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:57:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:57:24,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:57:24,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580338866] [2024-10-12 00:57:24,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580338866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:57:24,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:57:24,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:57:24,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194631837] [2024-10-12 00:57:24,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:57:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:57:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:57:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:57:24,700 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. cyclomatic complexity: 46 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:57:24,750 INFO L93 Difference]: Finished difference Result 335 states and 415 transitions. [2024-10-12 00:57:24,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 335 states and 415 transitions. [2024-10-12 00:57:24,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2024-10-12 00:57:24,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 335 states to 335 states and 415 transitions. [2024-10-12 00:57:24,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 335 [2024-10-12 00:57:24,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 335 [2024-10-12 00:57:24,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 335 states and 415 transitions. [2024-10-12 00:57:24,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:57:24,758 INFO L218 hiAutomatonCegarLoop]: Abstraction has 335 states and 415 transitions. [2024-10-12 00:57:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states and 415 transitions. [2024-10-12 00:57:24,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-10-12 00:57:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 335 states have (on average 1.2388059701492538) internal successors, (415), 334 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:57:24,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 415 transitions. [2024-10-12 00:57:24,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 335 states and 415 transitions. [2024-10-12 00:57:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:57:24,772 INFO L425 stractBuchiCegarLoop]: Abstraction has 335 states and 415 transitions. [2024-10-12 00:57:24,772 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-12 00:57:24,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 335 states and 415 transitions. [2024-10-12 00:57:24,774 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2024-10-12 00:57:24,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:57:24,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:57:24,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:57:24,774 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] [2024-10-12 00:57:24,775 INFO L745 eck$LassoCheckResult]: Stem: 1730#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1731#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1722#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1723#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1795#valid_product_returnLabel#1 main_#t~ret9#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1725#L239 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1726#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1785#L638-2 [2024-10-12 00:57:24,775 INFO L747 eck$LassoCheckResult]: Loop: 1785#L638-2 assume !false; 1933#L639 assume test_~splverifierCounter~0#1 < 4; 1934#L640 havoc test_#t~nondet33#1;test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 2002#L648 assume !(0 != test_~tmp~4#1); 2000#L648-2 havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1998#L658 assume !(0 != test_~tmp___0~0#1); 1996#L658-2 havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1995#L668 assume 0 != test_~tmp___2~0#1; 1993#L674-2 assume { :begin_inline_timeShift } true; 1769#L704 assume !(0 != ~pumpRunning~0); 1752#L704-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1753#L736 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1973#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1971#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1967#L838 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1965#L838-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1962#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 1961#L740 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1960#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 1958#L736-1 havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;assume { :end_inline_processEnvironment } true; 1956#L711-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1954#isMethaneLevelCritical_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret48#1;havoc __utac_acc__Specification3_spec__1_#t~ret48#1; 1952#L858 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1950#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1947#L864 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1945#L864-1 havoc __utac_acc__Specification3_spec__1_#t~ret48#1, __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1944#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1785#L638-2 [2024-10-12 00:57:24,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 6 times [2024-10-12 00:57:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835077703] [2024-10-12 00:57:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 323064850, now seen corresponding path program 1 times [2024-10-12 00:57:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673993649] [2024-10-12 00:57:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:57:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash 698352590, now seen corresponding path program 1 times [2024-10-12 00:57:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:57:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834474131] [2024-10-12 00:57:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:57:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:57:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:24,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:57:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:25,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:57:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:57:25,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:57:25 BoogieIcfgContainer [2024-10-12 00:57:25,521 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:57:25,521 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:57:25,521 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:57:25,522 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:57:25,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:57:23" (3/4) ... [2024-10-12 00:57:25,523 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-12 00:57:25,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:57:25,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:57:25,564 INFO L158 Benchmark]: Toolchain (without parser) took 3067.85ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 102.5MB in the beginning and 141.7MB in the end (delta: -39.2MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,564 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory was 76.1MB in the beginning and 75.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:57:25,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.10ms. Allocated memory is still 172.0MB. Free memory was 102.3MB in the beginning and 139.3MB in the end (delta: -37.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 172.0MB. Free memory was 139.3MB in the beginning and 136.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,565 INFO L158 Benchmark]: Boogie Preprocessor took 48.01ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 133.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,565 INFO L158 Benchmark]: RCFGBuilder took 392.05ms. Allocated memory is still 172.0MB. Free memory was 133.7MB in the beginning and 113.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,565 INFO L158 Benchmark]: BuchiAutomizer took 2116.56ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 112.7MB in the beginning and 144.8MB in the end (delta: -32.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,566 INFO L158 Benchmark]: Witness Printer took 42.02ms. Allocated memory is still 218.1MB. Free memory was 144.8MB in the beginning and 141.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:57:25,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory was 76.1MB in the beginning and 75.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.10ms. Allocated memory is still 172.0MB. Free memory was 102.3MB in the beginning and 139.3MB in the end (delta: -37.0MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 172.0MB. Free memory was 139.3MB in the beginning and 136.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.01ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 133.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.05ms. Allocated memory is still 172.0MB. Free memory was 133.7MB in the beginning and 113.2MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 2116.56ms. Allocated memory was 172.0MB in the beginning and 218.1MB in the end (delta: 46.1MB). Free memory was 112.7MB in the beginning and 144.8MB in the end (delta: -32.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 42.02ms. Allocated memory is still 218.1MB. Free memory was 144.8MB in the beginning and 141.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] - GenericResultAtLocation [Line: 848]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 335 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 337 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 337 mSDsluCounter, 1946 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1293 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 653 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 638]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L909] int retValue_acc ; [L912] retValue_acc = 1 [L913] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L629] int splverifierCounter ; [L630] int tmp ; [L631] int tmp___0 ; [L632] int tmp___1 ; [L633] int tmp___2 ; [L636] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L638] COND TRUE 1 [L640] COND TRUE splverifierCounter < 4 [L646] tmp = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp)) [L656] tmp___0 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___0)) [L666] tmp___2 = __VERIFIER_nondet_int() [L668] COND TRUE \read(tmp___2) [L681] CALL timeShift() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L713] CALL processEnvironment() [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L738] CALL, EXPR isHighWaterLevel() [L830] int retValue_acc ; [L831] int tmp ; [L832] int tmp___0 ; [L836] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L836] RET, EXPR isHighWaterSensorDry() [L836] tmp = isHighWaterSensorDry() [L838] COND TRUE \read(tmp) [L839] tmp___0 = 0 [L843] retValue_acc = tmp___0 [L844] return (retValue_acc); [L738] RET, EXPR isHighWaterLevel() [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L746] FCALL processEnvironment__wrappee__base() [L713] RET processEnvironment() [L719] CALL __utac_acc__Specification3_spec__1() [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L856] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L856] RET, EXPR isMethaneLevelCritical() [L856] tmp = isMethaneLevelCritical() [L858] COND FALSE !(\read(tmp)) [L862] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L862] RET, EXPR getWaterLevel() [L862] tmp___0 = getWaterLevel() [L864] COND FALSE !(tmp___0 == 2) [L719] RET __utac_acc__Specification3_spec__1() [L681] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 638]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L422] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L909] int retValue_acc ; [L912] retValue_acc = 1 [L913] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L237] RET, EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L629] int splverifierCounter ; [L630] int tmp ; [L631] int tmp___0 ; [L632] int tmp___1 ; [L633] int tmp___2 ; [L636] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L638] COND TRUE 1 [L640] COND TRUE splverifierCounter < 4 [L646] tmp = __VERIFIER_nondet_int() [L648] COND FALSE !(\read(tmp)) [L656] tmp___0 = __VERIFIER_nondet_int() [L658] COND FALSE !(\read(tmp___0)) [L666] tmp___2 = __VERIFIER_nondet_int() [L668] COND TRUE \read(tmp___2) [L681] CALL timeShift() [L704] COND FALSE !(\read(pumpRunning)) [L711] COND TRUE \read(systemActive) [L713] CALL processEnvironment() [L733] int tmp ; [L736] COND TRUE ! pumpRunning [L738] CALL, EXPR isHighWaterLevel() [L830] int retValue_acc ; [L831] int tmp ; [L832] int tmp___0 ; [L836] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L836] RET, EXPR isHighWaterSensorDry() [L836] tmp = isHighWaterSensorDry() [L838] COND TRUE \read(tmp) [L839] tmp___0 = 0 [L843] retValue_acc = tmp___0 [L844] return (retValue_acc); [L738] RET, EXPR isHighWaterLevel() [L738] tmp = isHighWaterLevel() [L740] COND FALSE !(\read(tmp)) [L746] FCALL processEnvironment__wrappee__base() [L713] RET processEnvironment() [L719] CALL __utac_acc__Specification3_spec__1() [L850] int tmp ; [L851] int tmp___0 ; [L852] int tmp___1 ; [L856] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L856] RET, EXPR isMethaneLevelCritical() [L856] tmp = isMethaneLevelCritical() [L858] COND FALSE !(\read(tmp)) [L862] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L862] RET, EXPR getWaterLevel() [L862] tmp___0 = getWaterLevel() [L864] COND FALSE !(tmp___0 == 2) [L719] RET __utac_acc__Specification3_spec__1() [L681] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-12 00:57:25,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)