./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 e8a2709147afbb012c6cccd417fa49b368030a0529ed1a30816506b77e415ad7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:56,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:56,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:56,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:56,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:56,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:56,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:56,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:56,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:56,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:56,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:56,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:56,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:56,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:56,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:56,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:56,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:56,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:56,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:56,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:56,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:56,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:56,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:56,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:56,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:56,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:56,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:56,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:56,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:56,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:56,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:56,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:56,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:56,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:56,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:56,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:56,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:56,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:56,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:56,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:56,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:56,526 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:56,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:56,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:56,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:56,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:56,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:56,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:56,569 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:56,569 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:56,569 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:56,569 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:56,570 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:56,571 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:56,571 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:56,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:56,571 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:56,571 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:56,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:56,573 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:56,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:56,573 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:56,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:56,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:56,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:56,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:56,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:56,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:56,575 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:56,576 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8a2709147afbb012c6cccd417fa49b368030a0529ed1a30816506b77e415ad7 [2022-02-21 04:16:56,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:56,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:56,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:56,808 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:56,809 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:56,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2022-02-21 04:16:56,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34dd2ec1f/879f1c9198d2477ca0b7a7ca31156d26/FLAG224a180cf [2022-02-21 04:16:57,342 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:57,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2022-02-21 04:16:57,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34dd2ec1f/879f1c9198d2477ca0b7a7ca31156d26/FLAG224a180cf [2022-02-21 04:16:57,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34dd2ec1f/879f1c9198d2477ca0b7a7ca31156d26 [2022-02-21 04:16:57,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:57,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:57,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:57,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:57,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:57,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c425778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:57, skipping insertion in model container [2022-02-21 04:16:57,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:57" (1/1) ... [2022-02-21 04:16:57,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:57,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:58,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c[17441,17454] [2022-02-21 04:16:58,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:58,233 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:58,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c[17441,17454] [2022-02-21 04:16:58,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:58,376 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:58,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58 WrapperNode [2022-02-21 04:16:58,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:58,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:58,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:58,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:58,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,456 INFO L137 Inliner]: procedures = 55, calls = 157, calls flagged for inlining = 54, calls inlined = 81, statements flattened = 593 [2022-02-21 04:16:58,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:58,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:58,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:58,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:58,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:58,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:58,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:58,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:58,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (1/1) ... [2022-02-21 04:16:58,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:58,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:58,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:58,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:58,642 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:58,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:59,094 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:59,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:59,104 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:59,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:59 BoogieIcfgContainer [2022-02-21 04:16:59,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:59,109 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:59,109 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:59,112 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:59,113 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:59,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:57" (1/3) ... [2022-02-21 04:16:59,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a82e73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:59, skipping insertion in model container [2022-02-21 04:16:59,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:59,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:58" (2/3) ... [2022-02-21 04:16:59,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a82e73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:59, skipping insertion in model container [2022-02-21 04:16:59,114 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:59,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:59" (3/3) ... [2022-02-21 04:16:59,116 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2022-02-21 04:16:59,163 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:59,163 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:59,163 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:59,163 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:59,163 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:59,163 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:59,164 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:59,164 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:59,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:16:59,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:59,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:59,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,227 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:59,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:16:59,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:59,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:59,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,248 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,252 INFO L791 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 46#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; 143#L920true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 138#L913true 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; 81#L928true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 88#L234true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 91#L207true 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; 155#L625-2true [2022-02-21 04:16:59,253 INFO L793 eck$LassoCheckResult]: Loop: 155#L625-2true assume !false; 85#L626true assume test_~splverifierCounter~0#1 < 4; 58#L627true test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 30#L635true assume !(0 != test_~tmp~4#1); 55#L635-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 158#L645true assume !(0 != test_~tmp___0~0#1); 59#L645-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 39#L655true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 60#L885true assume { :end_inline_startSystem } true; 32#L663-2true assume { :begin_inline_timeShift } true; 142#L693true assume !(0 != ~pumpRunning~0); 66#L693-2true assume !(0 != ~systemActive~0); 79#L700-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#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~9#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; 92#L100-1true __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 123#L942true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 20#L948-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 84#L710true assume { :end_inline_timeShift } true; 155#L625-2true [2022-02-21 04:16:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:59,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442834414] [2022-02-21 04:16:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,420 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,484 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:59,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1638995117, now seen corresponding path program 1 times [2022-02-21 04:16:59,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118015505] [2022-02-21 04:16:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:59,662 INFO L290 TraceCheckUtils]: 0: Hoare triple {163#true} assume !false; {163#true} is VALID [2022-02-21 04:16:59,663 INFO L290 TraceCheckUtils]: 1: Hoare triple {163#true} assume test_~splverifierCounter~0#1 < 4; {163#true} is VALID [2022-02-21 04:16:59,663 INFO L290 TraceCheckUtils]: 2: Hoare triple {163#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {163#true} is VALID [2022-02-21 04:16:59,663 INFO L290 TraceCheckUtils]: 3: Hoare triple {163#true} assume !(0 != test_~tmp~4#1); {163#true} is VALID [2022-02-21 04:16:59,664 INFO L290 TraceCheckUtils]: 4: Hoare triple {163#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {163#true} is VALID [2022-02-21 04:16:59,664 INFO L290 TraceCheckUtils]: 5: Hoare triple {163#true} assume !(0 != test_~tmp___0~0#1); {163#true} is VALID [2022-02-21 04:16:59,664 INFO L290 TraceCheckUtils]: 6: Hoare triple {163#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {163#true} is VALID [2022-02-21 04:16:59,665 INFO L290 TraceCheckUtils]: 7: Hoare triple {163#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {165#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:59,666 INFO L290 TraceCheckUtils]: 8: Hoare triple {165#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {165#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:59,666 INFO L290 TraceCheckUtils]: 9: Hoare triple {165#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {165#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:59,667 INFO L290 TraceCheckUtils]: 10: Hoare triple {165#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {165#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:59,668 INFO L290 TraceCheckUtils]: 11: Hoare triple {165#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {164#false} is VALID [2022-02-21 04:16:59,668 INFO L290 TraceCheckUtils]: 12: Hoare triple {164#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#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~9#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; {164#false} is VALID [2022-02-21 04:16:59,668 INFO L290 TraceCheckUtils]: 13: Hoare triple {164#false} __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; {164#false} is VALID [2022-02-21 04:16:59,669 INFO L290 TraceCheckUtils]: 14: Hoare triple {164#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; {164#false} is VALID [2022-02-21 04:16:59,670 INFO L290 TraceCheckUtils]: 15: Hoare triple {164#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {164#false} is VALID [2022-02-21 04:16:59,670 INFO L290 TraceCheckUtils]: 16: Hoare triple {164#false} assume { :end_inline_timeShift } true; {164#false} is VALID [2022-02-21 04:16:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:59,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:59,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118015505] [2022-02-21 04:16:59,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118015505] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:59,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:59,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:59,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069077253] [2022-02-21 04:16:59,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:59,679 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:59,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:59,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:59,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:59,716 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 1.3525641025641026) internal successors, (211), 156 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-02-21 04:16:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,963 INFO L93 Difference]: Finished difference Result 154 states and 198 transitions. [2022-02-21 04:16:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:59,964 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-02-21 04:16:59,983 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:59,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 198 transitions. [2022-02-21 04:17:00,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:00,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 144 states and 187 transitions. [2022-02-21 04:17:00,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 144 [2022-02-21 04:17:00,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2022-02-21 04:17:00,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 187 transitions. [2022-02-21 04:17:00,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:00,012 INFO L681 BuchiCegarLoop]: Abstraction has 144 states and 187 transitions. [2022-02-21 04:17:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 187 transitions. [2022-02-21 04:17:00,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-02-21 04:17:00,041 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:00,043 INFO L82 GeneralOperation]: Start isEquivalent. First operand 144 states and 187 transitions. Second operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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) [2022-02-21 04:17:00,044 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states and 187 transitions. Second operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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) [2022-02-21 04:17:00,046 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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) [2022-02-21 04:17:00,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:00,052 INFO L93 Difference]: Finished difference Result 144 states and 187 transitions. [2022-02-21 04:17:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2022-02-21 04:17:00,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:00,054 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:00,055 INFO L74 IsIncluded]: Start isIncluded. First operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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 144 states and 187 transitions. [2022-02-21 04:17:00,055 INFO L87 Difference]: Start difference. First operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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 144 states and 187 transitions. [2022-02-21 04:17:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:00,060 INFO L93 Difference]: Finished difference Result 144 states and 187 transitions. [2022-02-21 04:17:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2022-02-21 04:17:00,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:00,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:00,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:00,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 144 states have (on average 1.2986111111111112) internal successors, (187), 143 states have internal predecessors, (187), 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) [2022-02-21 04:17:00,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2022-02-21 04:17:00,068 INFO L704 BuchiCegarLoop]: Abstraction has 144 states and 187 transitions. [2022-02-21 04:17:00,069 INFO L587 BuchiCegarLoop]: Abstraction has 144 states and 187 transitions. [2022-02-21 04:17:00,069 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:00,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 187 transitions. [2022-02-21 04:17:00,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:00,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:00,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:00,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:00,072 INFO L843 BuchiCegarLoop]: 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] [2022-02-21 04:17:00,072 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 395#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; 396#L920 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 458#L913 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; 426#L928 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 427#L234 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 435#L207 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; 431#L625-2 [2022-02-21 04:17:00,073 INFO L793 eck$LassoCheckResult]: Loop: 431#L625-2 assume !false; 433#L626 assume test_~splverifierCounter~0#1 < 4; 408#L627 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 371#L635 assume !(0 != test_~tmp~4#1); 373#L635-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 407#L645 assume !(0 != test_~tmp___0~0#1); 330#L645-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 386#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 387#L885 assume { :end_inline_startSystem } true; 358#L663-2 assume { :begin_inline_timeShift } true; 376#L693 assume !(0 != ~pumpRunning~0); 366#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 369#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 360#L725-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 361#L717-3 assume { :end_inline_processEnvironment__wrappee__base } true; 341#L725-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 334#L751-1 assume { :end_inline_processEnvironment } true; 335#L700-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#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~9#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; 424#L100-1 __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 437#L942 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 327#L948-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 352#L710 assume { :end_inline_timeShift } true; 431#L625-2 [2022-02-21 04:17:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:00,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345503348] [2022-02-21 04:17:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,108 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1056605131, now seen corresponding path program 1 times [2022-02-21 04:17:00,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605629037] [2022-02-21 04:17:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:00,124 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:00,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash 60237561, now seen corresponding path program 1 times [2022-02-21 04:17:00,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:00,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344448843] [2022-02-21 04:17:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:00,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:00,202 INFO L290 TraceCheckUtils]: 0: Hoare triple {759#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,203 INFO L290 TraceCheckUtils]: 1: Hoare triple {761#(= ~methaneLevelCritical~0 0)} 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; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,203 INFO L290 TraceCheckUtils]: 2: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,204 INFO L290 TraceCheckUtils]: 3: Hoare triple {761#(= ~methaneLevelCritical~0 0)} 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; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,204 INFO L290 TraceCheckUtils]: 4: Hoare triple {761#(= ~methaneLevelCritical~0 0)} main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,205 INFO L290 TraceCheckUtils]: 5: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,205 INFO L290 TraceCheckUtils]: 6: Hoare triple {761#(= ~methaneLevelCritical~0 0)} 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; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,205 INFO L290 TraceCheckUtils]: 7: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !false; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,206 INFO L290 TraceCheckUtils]: 8: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,206 INFO L290 TraceCheckUtils]: 9: Hoare triple {761#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,207 INFO L290 TraceCheckUtils]: 10: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,207 INFO L290 TraceCheckUtils]: 11: Hoare triple {761#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,208 INFO L290 TraceCheckUtils]: 12: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,208 INFO L290 TraceCheckUtils]: 13: Hoare triple {761#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,209 INFO L290 TraceCheckUtils]: 14: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,209 INFO L290 TraceCheckUtils]: 15: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,210 INFO L290 TraceCheckUtils]: 16: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,210 INFO L290 TraceCheckUtils]: 17: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,211 INFO L290 TraceCheckUtils]: 18: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,221 INFO L290 TraceCheckUtils]: 19: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,222 INFO L290 TraceCheckUtils]: 20: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,222 INFO L290 TraceCheckUtils]: 21: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,222 INFO L290 TraceCheckUtils]: 22: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,223 INFO L290 TraceCheckUtils]: 23: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {761#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:00,224 INFO L290 TraceCheckUtils]: 24: Hoare triple {761#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#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~9#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; {762#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:00,225 INFO L290 TraceCheckUtils]: 25: Hoare triple {762#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; {763#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~9#1| 0)} is VALID [2022-02-21 04:17:00,226 INFO L290 TraceCheckUtils]: 26: Hoare triple {763#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~9#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; {760#false} is VALID [2022-02-21 04:17:00,226 INFO L290 TraceCheckUtils]: 27: Hoare triple {760#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {760#false} is VALID [2022-02-21 04:17:00,226 INFO L290 TraceCheckUtils]: 28: Hoare triple {760#false} assume { :end_inline_timeShift } true; {760#false} is VALID [2022-02-21 04:17:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:00,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:00,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344448843] [2022-02-21 04:17:00,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344448843] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:00,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:00,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:00,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853601382] [2022-02-21 04:17:00,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:00,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:00,360 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-02-21 04:17:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:01,256 INFO L93 Difference]: Finished difference Result 527 states and 688 transitions. [2022-02-21 04:17:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:01,256 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-02-21 04:17:01,279 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:01,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 527 states and 688 transitions. [2022-02-21 04:17:01,301 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 363 [2022-02-21 04:17:01,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 527 states to 527 states and 688 transitions. [2022-02-21 04:17:01,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 527 [2022-02-21 04:17:01,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 527 [2022-02-21 04:17:01,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 527 states and 688 transitions. [2022-02-21 04:17:01,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:01,327 INFO L681 BuchiCegarLoop]: Abstraction has 527 states and 688 transitions. [2022-02-21 04:17:01,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states and 688 transitions. [2022-02-21 04:17:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 281. [2022-02-21 04:17:01,340 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:01,341 INFO L82 GeneralOperation]: Start isEquivalent. First operand 527 states and 688 transitions. Second operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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) [2022-02-21 04:17:01,342 INFO L74 IsIncluded]: Start isIncluded. First operand 527 states and 688 transitions. Second operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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) [2022-02-21 04:17:01,343 INFO L87 Difference]: Start difference. First operand 527 states and 688 transitions. Second operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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) [2022-02-21 04:17:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:01,385 INFO L93 Difference]: Finished difference Result 527 states and 688 transitions. [2022-02-21 04:17:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 688 transitions. [2022-02-21 04:17:01,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:01,388 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:01,389 INFO L74 IsIncluded]: Start isIncluded. First operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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 527 states and 688 transitions. [2022-02-21 04:17:01,390 INFO L87 Difference]: Start difference. First operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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 527 states and 688 transitions. [2022-02-21 04:17:01,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:01,407 INFO L93 Difference]: Finished difference Result 527 states and 688 transitions. [2022-02-21 04:17:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 688 transitions. [2022-02-21 04:17:01,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:01,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:01,409 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:01,409 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 281 states have (on average 1.291814946619217) internal successors, (363), 280 states have internal predecessors, (363), 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) [2022-02-21 04:17:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 363 transitions. [2022-02-21 04:17:01,417 INFO L704 BuchiCegarLoop]: Abstraction has 281 states and 363 transitions. [2022-02-21 04:17:01,418 INFO L587 BuchiCegarLoop]: Abstraction has 281 states and 363 transitions. [2022-02-21 04:17:01,418 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:01,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states and 363 transitions. [2022-02-21 04:17:01,420 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 194 [2022-02-21 04:17:01,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:01,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:01,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:01,421 INFO L843 BuchiCegarLoop]: 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] [2022-02-21 04:17:01,421 INFO L791 eck$LassoCheckResult]: Stem: 1455#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1374#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; 1375#L920 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1453#L913 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; 1409#L928 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1410#L234 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1419#L207 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; 1422#L625-2 [2022-02-21 04:17:01,421 INFO L793 eck$LassoCheckResult]: Loop: 1422#L625-2 assume !false; 1559#L626 assume test_~splverifierCounter~0#1 < 4; 1560#L627 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 1578#L635 assume !(0 != test_~tmp~4#1); 1386#L635-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 1387#L645 assume !(0 != test_~tmp___0~0#1); 1389#L645-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 1365#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1366#L885 assume { :end_inline_startSystem } true; 1337#L663-2 assume { :begin_inline_timeShift } true; 1355#L693 assume !(0 != ~pumpRunning~0); 1345#L693-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1393#L751 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 1537#L725-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1403#L717-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1320#L725-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1313#L751-1 assume { :end_inline_processEnvironment } true; 1314#L700-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#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~9#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; 1407#L100-1 __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 1443#L942 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#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; 1444#L132 __utac_acc__Specification3_spec__1_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret52#1;havoc __utac_acc__Specification3_spec__1_#t~ret52#1; 1462#L948 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1562#L948-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1561#L710 assume { :end_inline_timeShift } true; 1422#L625-2 [2022-02-21 04:17:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:01,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403876390] [2022-02-21 04:17:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,434 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,445 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1783996024, now seen corresponding path program 1 times [2022-02-21 04:17:01,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10242398] [2022-02-21 04:17:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,469 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:01,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2054974284, now seen corresponding path program 1 times [2022-02-21 04:17:01,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:01,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109050482] [2022-02-21 04:17:01,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:01,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,484 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:01,497 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:04,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:04 BoogieIcfgContainer [2022-02-21 04:17:04,316 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:04,317 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:04,317 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:04,317 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:04,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:59" (3/4) ... [2022-02-21 04:17:04,320 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:04,358 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:04,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:04,366 INFO L158 Benchmark]: Toolchain (without parser) took 6515.19ms. Allocated memory was 83.9MB in the beginning and 132.1MB in the end (delta: 48.2MB). Free memory was 50.7MB in the beginning and 81.7MB in the end (delta: -31.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,366 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:04,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.91ms. Allocated memory is still 83.9MB. Free memory was 50.5MB in the beginning and 55.7MB in the end (delta: -5.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.94ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,371 INFO L158 Benchmark]: Boogie Preprocessor took 45.14ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 49.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,371 INFO L158 Benchmark]: RCFGBuilder took 597.22ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 53.4MB in the end (delta: -4.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,372 INFO L158 Benchmark]: BuchiAutomizer took 5207.27ms. Allocated memory was 83.9MB in the beginning and 132.1MB in the end (delta: 48.2MB). Free memory was 53.1MB in the beginning and 83.8MB in the end (delta: -30.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,372 INFO L158 Benchmark]: Witness Printer took 48.02ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:04,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.91ms. Allocated memory is still 83.9MB. Free memory was 50.5MB in the beginning and 55.7MB in the end (delta: -5.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.94ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.14ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 49.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.22ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 53.4MB in the end (delta: -4.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 5207.27ms. Allocated memory was 83.9MB in the beginning and 132.1MB in the end (delta: 48.2MB). Free memory was 53.1MB in the beginning and 83.8MB in the end (delta: -30.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Witness Printer took 48.02ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 281 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 246 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 281 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 881 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 881 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 856 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 470 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 625]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f8c1a1c=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30475618=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dec305e=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ce71ff7=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d0a1775=29, tmp=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3684253c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70cf40=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6da4a1cd=0, tmp=1, \result=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76160474=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6463a851=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 625]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L146] int cleanupTimeShifts = 4; [L417] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L685] int pumpRunning = 0; [L686] int systemActive = 1; [L225] int retValue_acc ; [L226] int tmp ; [L230] FCALL select_helpers() [L231] FCALL select_features() [L232] CALL, EXPR valid_product() [L924] int retValue_acc ; [L927] retValue_acc = 1 [L928] return (retValue_acc); [L232] RET, EXPR valid_product() [L232] tmp = valid_product() [L234] COND TRUE \read(tmp) [L236] FCALL setup() [L237] CALL runTest() [L216] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L884] systemActive = 1 [L657] RET startSystem() [L670] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; [L751] COND FALSE !(\read(pumpRunning)) [L766] CALL processEnvironment__wrappee__methaneQuery() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L766] RET processEnvironment__wrappee__methaneQuery() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L934] int tmp ; [L935] int tmp___0 ; [L936] int tmp___1 ; [L940] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L940] RET, EXPR isMethaneLevelCritical() [L940] tmp = isMethaneLevelCritical() [L942] COND FALSE !(\read(tmp)) [L946] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L946] RET, EXPR getWaterLevel() [L946] tmp___0 = getWaterLevel() [L948] COND FALSE !(tmp___0 == 2) [L708] RET __utac_acc__Specification3_spec__1() [L670] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:04,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)