./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product38.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_product38.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 c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:02,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:02,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:02,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:02,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:02,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:02,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:02,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:02,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:02,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:02,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:02,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:02,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:02,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:02,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:02,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:02,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:02,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:02,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:02,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:02,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:02,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:02,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:02,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:02,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:02,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:02,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:02,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:02,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:02,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:02,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:02,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:02,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:02,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:02,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:02,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:02,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:02,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:02,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:02,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:02,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:02,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:02,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:02,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:02,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:02,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:02,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:02,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:02,534 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:02,534 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:02,534 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:02,534 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:02,535 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:02,535 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:02,536 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:02,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:02,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:02,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:02,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:02,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:02,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:02,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:02,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:02,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:02,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:02,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:02,539 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:02,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:02,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:02,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:02,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:02,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:02,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:02,542 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:02,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8e3613a57f37f194f1fe75086d0eb5e0d997c2a9b69c99903e0a1a10a2db5eb [2022-02-21 04:17:02,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:02,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:02,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:02,822 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:02,823 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:02,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2022-02-21 04:17:02,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea95fe63e/8f6a71d733974290b99918914e4ebb82/FLAGa25bd6fe0 [2022-02-21 04:17:03,388 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:03,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product38.cil.c [2022-02-21 04:17:03,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea95fe63e/8f6a71d733974290b99918914e4ebb82/FLAGa25bd6fe0 [2022-02-21 04:17:03,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea95fe63e/8f6a71d733974290b99918914e4ebb82 [2022-02-21 04:17:03,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:03,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:03,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:03,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:03,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:03,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:03" (1/1) ... [2022-02-21 04:17:03,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1716232d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:03, skipping insertion in model container [2022-02-21 04:17:03,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:03" (1/1) ... [2022-02-21 04:17:03,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:03,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:04,228 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_product38.cil.c[15422,15435] [2022-02-21 04:17:04,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:04,248 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:04,299 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_product38.cil.c[15422,15435] [2022-02-21 04:17:04,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:04,324 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:04,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04 WrapperNode [2022-02-21 04:17:04,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:04,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:04,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:04,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:04,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,420 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 52, calls inlined = 81, statements flattened = 617 [2022-02-21 04:17:04,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:04,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:04,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:04,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:04,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:04,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:04,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:04,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:04,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (1/1) ... [2022-02-21 04:17:04,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:04,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:04,506 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 04:17:04,514 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 04:17:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:04,634 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:04,636 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:05,133 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:05,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:05,141 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:05,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05 BoogieIcfgContainer [2022-02-21 04:17:05,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:05,156 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:05,156 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:05,159 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:05,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:03" (1/3) ... [2022-02-21 04:17:05,161 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4995d8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,161 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:04" (2/3) ... [2022-02-21 04:17:05,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4995d8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:05, skipping insertion in model container [2022-02-21 04:17:05,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:05,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/3) ... [2022-02-21 04:17:05,165 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product38.cil.c [2022-02-21 04:17:05,216 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:05,216 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:05,217 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:05,217 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:05,217 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:05,217 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:05,217 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:05,217 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:05,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 04:17:05,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:17:05,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,321 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 04:17:05,321 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:05,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 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 04:17:05,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2022-02-21 04:17:05,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:05,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:05,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:05,348 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 04:17:05,352 INFO L791 eck$LassoCheckResult]: Stem: 148#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 43#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 72#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 155#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 28#L83true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 97#L812true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 81#L789true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 125#L103-2true [2022-02-21 04:17:05,353 INFO L793 eck$LassoCheckResult]: Loop: 125#L103-2true assume !false; 23#L104true assume test_~splverifierCounter~0#1 < 4; 22#L105true test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 142#L113true assume !(0 != test_~tmp~0#1); 54#L113-2true test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 26#L123true assume !(0 != test_~tmp___0~0#1); 46#L123-2true test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 141#L133true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 51#L141true assume 0 != test_~tmp___1~0#1; 144#L141-2true assume { :begin_inline_timeShift } true; 47#L176true assume !(0 != ~pumpRunning~0); 160#L176-2true assume !(0 != ~systemActive~0); 117#L183-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 29#L870-1true __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 73#L930true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 15#L936-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 67#L193true assume { :end_inline_timeShift } true; 125#L103-2true [2022-02-21 04:17:05,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:05,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740502852] [2022-02-21 04:17:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,564 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:05,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1718414996, now seen corresponding path program 1 times [2022-02-21 04:17:05,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471417015] [2022-02-21 04:17:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:05,601 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:05,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:05,603 INFO L85 PathProgramCache]: Analyzing trace with hash 786733392, now seen corresponding path program 1 times [2022-02-21 04:17:05,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:05,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572620128] [2022-02-21 04:17:05,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:05,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:05,795 INFO L290 TraceCheckUtils]: 0: Hoare triple {171#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {173#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,796 INFO L290 TraceCheckUtils]: 1: Hoare triple {173#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {173#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,797 INFO L290 TraceCheckUtils]: 2: Hoare triple {173#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {173#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:05,797 INFO L290 TraceCheckUtils]: 3: Hoare triple {173#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {174#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:05,798 INFO L290 TraceCheckUtils]: 4: Hoare triple {174#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; {175#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:17:05,798 INFO L290 TraceCheckUtils]: 5: Hoare triple {175#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,799 INFO L290 TraceCheckUtils]: 6: Hoare triple {176#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,799 INFO L290 TraceCheckUtils]: 7: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !false; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,800 INFO L290 TraceCheckUtils]: 8: Hoare triple {176#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,801 INFO L290 TraceCheckUtils]: 9: Hoare triple {176#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,801 INFO L290 TraceCheckUtils]: 10: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,802 INFO L290 TraceCheckUtils]: 11: Hoare triple {176#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,837 INFO L290 TraceCheckUtils]: 12: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,837 INFO L290 TraceCheckUtils]: 13: Hoare triple {176#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,838 INFO L290 TraceCheckUtils]: 14: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,838 INFO L290 TraceCheckUtils]: 15: Hoare triple {176#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,839 INFO L290 TraceCheckUtils]: 16: Hoare triple {176#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,839 INFO L290 TraceCheckUtils]: 17: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {176#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 18: Hoare triple {176#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {172#false} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 19: Hoare triple {172#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {172#false} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 20: Hoare triple {172#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {172#false} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 21: Hoare triple {172#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {172#false} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 22: Hoare triple {172#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {172#false} is VALID [2022-02-21 04:17:05,840 INFO L290 TraceCheckUtils]: 23: Hoare triple {172#false} assume { :end_inline_timeShift } true; {172#false} is VALID [2022-02-21 04:17:05,841 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 04:17:05,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:05,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572620128] [2022-02-21 04:17:05,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572620128] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:05,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:05,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:05,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421367164] [2022-02-21 04:17:05,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:05,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:05,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:05,973 INFO L87 Difference]: Start difference. First operand has 163 states, 162 states have (on average 1.376543209876543) internal successors, (223), 162 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:17:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,296 INFO L93 Difference]: Finished difference Result 160 states and 209 transitions. [2022-02-21 04:17:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:06,297 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 04:17:06,316 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:06,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2022-02-21 04:17:06,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:17:06,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 150 states and 199 transitions. [2022-02-21 04:17:06,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 150 [2022-02-21 04:17:06,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2022-02-21 04:17:06,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 199 transitions. [2022-02-21 04:17:06,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:06,332 INFO L681 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:17:06,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 199 transitions. [2022-02-21 04:17:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-02-21 04:17:06,362 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:06,363 INFO L82 GeneralOperation]: Start isEquivalent. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 04:17:06,364 INFO L74 IsIncluded]: Start isIncluded. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 04:17:06,365 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. Second operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 04:17:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,369 INFO L93 Difference]: Finished difference Result 150 states and 199 transitions. [2022-02-21 04:17:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:17:06,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,371 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,371 INFO L74 IsIncluded]: Start isIncluded. First operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 150 states and 199 transitions. [2022-02-21 04:17:06,371 INFO L87 Difference]: Start difference. First operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 150 states and 199 transitions. [2022-02-21 04:17:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,375 INFO L93 Difference]: Finished difference Result 150 states and 199 transitions. [2022-02-21 04:17:06,375 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:17:06,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,376 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,376 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:06,376 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3266666666666667) internal successors, (199), 149 states have internal predecessors, (199), 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 04:17:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2022-02-21 04:17:06,381 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:17:06,381 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 199 transitions. [2022-02-21 04:17:06,381 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:06,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 199 transitions. [2022-02-21 04:17:06,382 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 101 [2022-02-21 04:17:06,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,382 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,382 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 04:17:06,383 INFO L791 eck$LassoCheckResult]: Stem: 489#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 412#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 413#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 450#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 388#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 389#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 458#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 445#L103-2 [2022-02-21 04:17:06,383 INFO L793 eck$LassoCheckResult]: Loop: 445#L103-2 assume !false; 376#L104 assume test_~splverifierCounter~0#1 < 4; 374#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 375#L113 assume !(0 != test_~tmp~0#1); 432#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 382#L123 assume !(0 != test_~tmp___0~0#1); 384#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 418#L133 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 457#L351 assume { :end_inline_startSystem } true; 429#L141-2 assume { :begin_inline_timeShift } true; 421#L176 assume !(0 != ~pumpRunning~0); 422#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 460#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 461#L208-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 485#L200-3 assume { :end_inline_processEnvironment__wrappee__base } true; 473#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 381#L234-1 assume { :end_inline_processEnvironment } true; 481#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 386#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 387#L930 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 358#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 359#L193 assume { :end_inline_timeShift } true; 445#L103-2 [2022-02-21 04:17:06,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:06,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32149316] [2022-02-21 04:17:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,391 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,399 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2104677158, now seen corresponding path program 1 times [2022-02-21 04:17:06,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195423727] [2022-02-21 04:17:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:06,412 INFO L290 TraceCheckUtils]: 0: Hoare triple {796#true} assume !false; {796#true} is VALID [2022-02-21 04:17:06,412 INFO L290 TraceCheckUtils]: 1: Hoare triple {796#true} assume test_~splverifierCounter~0#1 < 4; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 2: Hoare triple {796#true} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 3: Hoare triple {796#true} assume !(0 != test_~tmp~0#1); {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 4: Hoare triple {796#true} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 5: Hoare triple {796#true} assume !(0 != test_~tmp___0~0#1); {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 6: Hoare triple {796#true} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 7: Hoare triple {796#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 8: Hoare triple {796#true} assume { :end_inline_startSystem } true; {796#true} is VALID [2022-02-21 04:17:06,413 INFO L290 TraceCheckUtils]: 9: Hoare triple {796#true} assume { :begin_inline_timeShift } true; {796#true} is VALID [2022-02-21 04:17:06,414 INFO L290 TraceCheckUtils]: 10: Hoare triple {796#true} assume !(0 != ~pumpRunning~0); {798#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,414 INFO L290 TraceCheckUtils]: 11: Hoare triple {798#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {798#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,414 INFO L290 TraceCheckUtils]: 12: Hoare triple {798#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {798#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 13: Hoare triple {798#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 14: Hoare triple {797#false} assume { :end_inline_processEnvironment__wrappee__base } true; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 15: Hoare triple {797#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 16: Hoare triple {797#false} assume { :end_inline_processEnvironment } true; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 17: Hoare triple {797#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 18: Hoare triple {797#false} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 19: Hoare triple {797#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 20: Hoare triple {797#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {797#false} is VALID [2022-02-21 04:17:06,415 INFO L290 TraceCheckUtils]: 21: Hoare triple {797#false} assume { :end_inline_timeShift } true; {797#false} is VALID [2022-02-21 04:17:06,416 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 04:17:06,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:06,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195423727] [2022-02-21 04:17:06,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195423727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:06,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:06,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:06,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500333697] [2022-02-21 04:17:06,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:06,417 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:06,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:06,417 INFO L87 Difference]: Start difference. First operand 150 states and 199 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,615 INFO L93 Difference]: Finished difference Result 212 states and 271 transitions. [2022-02-21 04:17:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:06,615 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,631 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:06,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,637 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2022-02-21 04:17:06,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 212 states and 271 transitions. [2022-02-21 04:17:06,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 212 [2022-02-21 04:17:06,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 212 [2022-02-21 04:17:06,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:06,644 INFO L681 BuchiCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-02-21 04:17:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-02-21 04:17:06,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:06,651 INFO L82 GeneralOperation]: Start isEquivalent. First operand 212 states and 271 transitions. Second operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,652 INFO L74 IsIncluded]: Start isIncluded. First operand 212 states and 271 transitions. Second operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,652 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. Second operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,663 INFO L93 Difference]: Finished difference Result 212 states and 271 transitions. [2022-02-21 04:17:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,664 INFO L74 IsIncluded]: Start isIncluded. First operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 212 states and 271 transitions. [2022-02-21 04:17:06,665 INFO L87 Difference]: Start difference. First operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 212 states and 271 transitions. [2022-02-21 04:17:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:06,674 INFO L93 Difference]: Finished difference Result 212 states and 271 transitions. [2022-02-21 04:17:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:06,675 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:06,675 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:06,675 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:06,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 212 states have (on average 1.278301886792453) internal successors, (271), 211 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 271 transitions. [2022-02-21 04:17:06,683 INFO L704 BuchiCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-02-21 04:17:06,683 INFO L587 BuchiCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-02-21 04:17:06,683 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:06,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 212 states and 271 transitions. [2022-02-21 04:17:06,684 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2022-02-21 04:17:06,685 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:06,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:06,685 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:06,685 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, 1, 1, 1, 1] [2022-02-21 04:17:06,685 INFO L791 eck$LassoCheckResult]: Stem: 1169#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1081#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1082#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1122#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1053#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 1054#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1130#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1116#L103-2 [2022-02-21 04:17:06,688 INFO L793 eck$LassoCheckResult]: Loop: 1116#L103-2 assume !false; 1043#L104 assume test_~splverifierCounter~0#1 < 4; 1041#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1042#L113 assume !(0 != test_~tmp~0#1); 1102#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1049#L123 assume !(0 != test_~tmp___0~0#1); 1051#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1088#L133 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 1096#L141 assume 0 != test_~tmp___1~0#1; 1097#L141-2 assume { :begin_inline_timeShift } true; 1089#L176 assume !(0 != ~pumpRunning~0); 1090#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1132#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1133#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1037#L910-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1038#L915-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1023#L336-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1024#L336-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1021#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 1022#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1152#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1153#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1048#L234-1 assume { :end_inline_processEnvironment } true; 1158#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1055#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1056#L930 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 1029#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1030#L193 assume { :end_inline_timeShift } true; 1116#L103-2 [2022-02-21 04:17:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:06,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893778102] [2022-02-21 04:17:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,698 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,725 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash 894663057, now seen corresponding path program 1 times [2022-02-21 04:17:06,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552934701] [2022-02-21 04:17:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,732 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:06,739 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:06,739 INFO L85 PathProgramCache]: Analyzing trace with hash -356318891, now seen corresponding path program 1 times [2022-02-21 04:17:06,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:06,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644835836] [2022-02-21 04:17:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:06,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:06,782 INFO L290 TraceCheckUtils]: 0: Hoare triple {1654#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,782 INFO L290 TraceCheckUtils]: 1: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,783 INFO L290 TraceCheckUtils]: 2: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,783 INFO L290 TraceCheckUtils]: 3: Hoare triple {1656#(= ~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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,783 INFO L290 TraceCheckUtils]: 4: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,784 INFO L290 TraceCheckUtils]: 5: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,784 INFO L290 TraceCheckUtils]: 6: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,784 INFO L290 TraceCheckUtils]: 7: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !false; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,785 INFO L290 TraceCheckUtils]: 8: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,785 INFO L290 TraceCheckUtils]: 9: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,785 INFO L290 TraceCheckUtils]: 10: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~0#1); {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,786 INFO L290 TraceCheckUtils]: 11: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,786 INFO L290 TraceCheckUtils]: 12: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,786 INFO L290 TraceCheckUtils]: 13: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,787 INFO L290 TraceCheckUtils]: 14: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,787 INFO L290 TraceCheckUtils]: 15: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___1~0#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,788 INFO L290 TraceCheckUtils]: 16: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,788 INFO L290 TraceCheckUtils]: 17: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,788 INFO L290 TraceCheckUtils]: 18: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,789 INFO L290 TraceCheckUtils]: 19: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,789 INFO L290 TraceCheckUtils]: 20: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,789 INFO L290 TraceCheckUtils]: 21: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,790 INFO L290 TraceCheckUtils]: 22: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,790 INFO L290 TraceCheckUtils]: 23: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,790 INFO L290 TraceCheckUtils]: 24: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,791 INFO L290 TraceCheckUtils]: 25: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,791 INFO L290 TraceCheckUtils]: 26: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,791 INFO L290 TraceCheckUtils]: 27: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,792 INFO L290 TraceCheckUtils]: 28: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,792 INFO L290 TraceCheckUtils]: 29: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1656#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:06,793 INFO L290 TraceCheckUtils]: 30: Hoare triple {1656#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {1657#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:06,793 INFO L290 TraceCheckUtils]: 31: Hoare triple {1657#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; {1658#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:17:06,793 INFO L290 TraceCheckUtils]: 32: Hoare triple {1658#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {1655#false} is VALID [2022-02-21 04:17:06,794 INFO L290 TraceCheckUtils]: 33: Hoare triple {1655#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1655#false} is VALID [2022-02-21 04:17:06,794 INFO L290 TraceCheckUtils]: 34: Hoare triple {1655#false} assume { :end_inline_timeShift } true; {1655#false} is VALID [2022-02-21 04:17:06,794 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 04:17:06,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:06,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644835836] [2022-02-21 04:17:06,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644835836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:06,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:06,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:06,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707020664] [2022-02-21 04:17:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:07,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:07,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:07,015 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. cyclomatic complexity: 61 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 04:17:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,776 INFO L93 Difference]: Finished difference Result 737 states and 936 transitions. [2022-02-21 04:17:07,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:07,776 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 04:17:07,798 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:07,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 936 transitions. [2022-02-21 04:17:07,831 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 543 [2022-02-21 04:17:07,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 737 states and 936 transitions. [2022-02-21 04:17:07,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 737 [2022-02-21 04:17:07,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 737 [2022-02-21 04:17:07,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 737 states and 936 transitions. [2022-02-21 04:17:07,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:07,881 INFO L681 BuchiCegarLoop]: Abstraction has 737 states and 936 transitions. [2022-02-21 04:17:07,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states and 936 transitions. [2022-02-21 04:17:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 417. [2022-02-21 04:17:07,893 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:07,894 INFO L82 GeneralOperation]: Start isEquivalent. First operand 737 states and 936 transitions. Second operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,895 INFO L74 IsIncluded]: Start isIncluded. First operand 737 states and 936 transitions. Second operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,896 INFO L87 Difference]: Start difference. First operand 737 states and 936 transitions. Second operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,920 INFO L93 Difference]: Finished difference Result 737 states and 936 transitions. [2022-02-21 04:17:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 936 transitions. [2022-02-21 04:17:07,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,922 INFO L74 IsIncluded]: Start isIncluded. First operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 737 states and 936 transitions. [2022-02-21 04:17:07,923 INFO L87 Difference]: Start difference. First operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 737 states and 936 transitions. [2022-02-21 04:17:07,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:07,949 INFO L93 Difference]: Finished difference Result 737 states and 936 transitions. [2022-02-21 04:17:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 936 transitions. [2022-02-21 04:17:07,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:07,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:07,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:07,950 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:07,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 417 states have (on average 1.26378896882494) internal successors, (527), 416 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 527 transitions. [2022-02-21 04:17:07,962 INFO L704 BuchiCegarLoop]: Abstraction has 417 states and 527 transitions. [2022-02-21 04:17:07,962 INFO L587 BuchiCegarLoop]: Abstraction has 417 states and 527 transitions. [2022-02-21 04:17:07,962 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:07,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 417 states and 527 transitions. [2022-02-21 04:17:07,965 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2022-02-21 04:17:07,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:07,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:07,965 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,965 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, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:07,966 INFO L791 eck$LassoCheckResult]: Stem: 2583#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(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);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(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2475#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~8#1, main_~tmp~7#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2476#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2518#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2447#L83 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 2448#L812 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2528#L789 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2511#L103-2 [2022-02-21 04:17:07,967 INFO L793 eck$LassoCheckResult]: Loop: 2511#L103-2 assume !false; 2436#L104 assume test_~splverifierCounter~0#1 < 4; 2437#L105 test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2819#L113 assume !(0 != test_~tmp~0#1); 2817#L113-2 test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2816#L123 assume !(0 != test_~tmp___0~0#1); 2813#L123-2 test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 2812#L133 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2810#L351 assume { :end_inline_startSystem } true; 2580#L141-2 assume { :begin_inline_timeShift } true; 2483#L176 assume !(0 != ~pumpRunning~0); 2484#L176-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2530#L234 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2531#L208-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~3#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2789#L910-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2787#L915-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2784#L336-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2782#L336-5 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 2776#L342-1 processEnvironment__wrappee__highWaterSensor_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret9#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret9#1; 2775#L212-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2555#L200-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2554#L208-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2442#L234-1 assume { :end_inline_processEnvironment } true; 2752#L183-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_~tmp~8#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~8#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 2751#L870-1 __utac_acc__Specification3_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2519#L930 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 2520#L902 __utac_acc__Specification3_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 2741#L936 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2765#L936-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2510#L193 assume { :end_inline_timeShift } true; 2511#L103-2 [2022-02-21 04:17:07,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:07,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:07,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747731607] [2022-02-21 04:17:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:07,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:07,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,003 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1695248133, now seen corresponding path program 1 times [2022-02-21 04:17:08,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535364146] [2022-02-21 04:17:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,018 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,027 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2092438985, now seen corresponding path program 1 times [2022-02-21 04:17:08,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:08,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082227926] [2022-02-21 04:17:08,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:08,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,040 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:08,063 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:11,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:11 BoogieIcfgContainer [2022-02-21 04:17:11,286 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:11,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:11,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:11,287 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:11,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:05" (3/4) ... [2022-02-21 04:17:11,290 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:11,352 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:11,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:11,354 INFO L158 Benchmark]: Toolchain (without parser) took 7458.00ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 58.4MB in the beginning and 105.4MB in the end (delta: -47.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,354 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 63.7MB in the beginning and 63.6MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:11,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.50ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 59.7MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.67ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 55.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,355 INFO L158 Benchmark]: Boogie Preprocessor took 35.51ms. Allocated memory is still 94.4MB. Free memory was 55.5MB in the beginning and 52.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,355 INFO L158 Benchmark]: RCFGBuilder took 698.27ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 79.6MB in the end (delta: -26.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,356 INFO L158 Benchmark]: BuchiAutomizer took 6130.26ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 79.6MB in the beginning and 108.5MB in the end (delta: -28.9MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,356 INFO L158 Benchmark]: Witness Printer took 65.76ms. Allocated memory is still 163.6MB. Free memory was 108.5MB in the beginning and 105.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:11,357 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 0.24ms. Allocated memory is still 94.4MB. Free memory was 63.7MB in the beginning and 63.6MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.50ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 59.7MB in the end (delta: -1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.67ms. Allocated memory is still 94.4MB. Free memory was 59.7MB in the beginning and 55.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.51ms. Allocated memory is still 94.4MB. Free memory was 55.5MB in the beginning and 52.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 698.27ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 79.6MB in the end (delta: -26.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6130.26ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 79.6MB in the beginning and 108.5MB in the end (delta: -28.9MB). Peak memory consumption was 76.5MB. Max. memory is 16.1GB. * Witness Printer took 65.76ms. Allocated memory is still 163.6MB. Free memory was 108.5MB in the beginning and 105.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 417 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 320 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 417 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1504 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1504 mSDsluCounter, 1722 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1016 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 706 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 103]: 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, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8d1fae0=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30eae6de=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226d4c48=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29358e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69be9e69=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5644ea3a=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a848632=0, retValue_acc=1, \result=1, retValue_acc=0, \result=1, tmp=0, tmp=1, tmp=1, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f766fba=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45cdde9=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52300750=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64854243=0, \result=0, tmp=0, head=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 103]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L524] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L730] int cleanupTimeShifts = 4; [L827] int waterLevel = 1; [L828] int methaneLevelCritical = 0; [L803] int retValue_acc ; [L804] int tmp ; [L808] FCALL select_helpers() [L809] FCALL select_features() [L810] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L810] RET, EXPR valid_product() [L810] tmp = valid_product() [L812] COND TRUE \read(tmp) [L814] FCALL setup() [L815] CALL runTest() [L797] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) [L135] CALL startSystem() [L350] systemActive = 1 [L135] RET startSystem() [L148] CALL timeShift() [L176] COND FALSE !(\read(pumpRunning)) [L183] COND TRUE \read(systemActive) [L185] CALL processEnvironment() [L231] int tmp ; [L234] COND FALSE !(\read(pumpRunning)) [L249] CALL processEnvironment__wrappee__highWaterSensor() [L205] int tmp ; [L208] COND TRUE ! pumpRunning [L210] CALL, EXPR isHighWaterLevel() [L328] int retValue_acc ; [L329] int tmp ; [L330] int tmp___0 ; [L334] CALL, EXPR isHighWaterSensorDry() [L907] int retValue_acc ; [L910] COND TRUE waterLevel < 2 [L911] retValue_acc = 1 [L912] return (retValue_acc); [L334] RET, EXPR isHighWaterSensorDry() [L334] tmp = isHighWaterSensorDry() [L336] COND TRUE \read(tmp) [L337] tmp___0 = 0 [L341] retValue_acc = tmp___0 [L342] return (retValue_acc); [L210] RET, EXPR isHighWaterLevel() [L210] tmp = isHighWaterLevel() [L212] COND FALSE !(\read(tmp)) [L218] FCALL processEnvironment__wrappee__base() [L249] RET processEnvironment__wrappee__highWaterSensor() [L185] RET processEnvironment() [L191] CALL __utac_acc__Specification3_spec__1() [L922] int tmp ; [L923] int tmp___0 ; [L924] int tmp___1 ; [L928] CALL, EXPR isMethaneLevelCritical() [L866] int retValue_acc ; [L869] retValue_acc = methaneLevelCritical [L870] return (retValue_acc); [L928] RET, EXPR isMethaneLevelCritical() [L928] tmp = isMethaneLevelCritical() [L930] COND FALSE !(\read(tmp)) [L934] CALL, EXPR getWaterLevel() [L898] int retValue_acc ; [L901] retValue_acc = waterLevel [L902] return (retValue_acc); [L934] RET, EXPR getWaterLevel() [L934] tmp___0 = getWaterLevel() [L936] COND FALSE !(tmp___0 == 2) [L191] RET __utac_acc__Specification3_spec__1() [L148] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:11,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)