./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_product51.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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:14,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:14,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:14,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:14,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:14,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:14,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:14,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:14,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:14,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:14,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:14,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:14,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:14,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:14,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:14,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:14,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:14,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:14,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:14,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:14,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:14,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:14,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:14,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:14,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:14,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:14,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:14,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:14,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:14,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:14,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:14,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:14,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:14,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:14,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:14,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:14,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:14,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:14,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:14,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:14,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:14,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:14,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:14,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:14,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:14,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:14,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:14,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:14,513 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:14,513 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:14,513 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:14,514 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:14,514 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:14,515 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:14,515 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:14,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:14,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:14,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:14,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:14,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:14,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:14,517 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:14,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:14,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:14,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:14,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:14,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:14,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:14,519 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:14,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2022-02-21 04:17:14,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:14,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:14,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:14,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:14,774 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:14,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-02-21 04:17:14,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b9cf3a2/78023f41ae3e4ab8a2c0f932f48e0ae6/FLAGeed3a812b [2022-02-21 04:17:15,317 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:15,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2022-02-21 04:17:15,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b9cf3a2/78023f41ae3e4ab8a2c0f932f48e0ae6/FLAGeed3a812b [2022-02-21 04:17:15,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36b9cf3a2/78023f41ae3e4ab8a2c0f932f48e0ae6 [2022-02-21 04:17:15,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:15,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:15,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:15,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:15,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:15,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:15" (1/1) ... [2022-02-21 04:17:15,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3751553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:15, skipping insertion in model container [2022-02-21 04:17:15,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:15" (1/1) ... [2022-02-21 04:17:15,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:15,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:16,131 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_product51.cil.c[18789,18802] [2022-02-21 04:17:16,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:16,140 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:16,259 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_product51.cil.c[18789,18802] [2022-02-21 04:17:16,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:16,275 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:16,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16 WrapperNode [2022-02-21 04:17:16,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:16,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:16,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:16,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:16,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,369 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 82, statements flattened = 639 [2022-02-21 04:17:16,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:16,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:16,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:16,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:16,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:16,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:16,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:16,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:16,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (1/1) ... [2022-02-21 04:17:16,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:16,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:16,464 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 04:17:16,489 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 04:17:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:16,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:16,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:16,593 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:16,594 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:17,088 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:17,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:17,095 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17 BoogieIcfgContainer [2022-02-21 04:17:17,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:17,098 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:17,098 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:17,103 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:17,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:15" (1/3) ... [2022-02-21 04:17:17,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62b8963d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:17, skipping insertion in model container [2022-02-21 04:17:17,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:16" (2/3) ... [2022-02-21 04:17:17,106 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62b8963d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:17, skipping insertion in model container [2022-02-21 04:17:17,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:17,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17" (3/3) ... [2022-02-21 04:17:17,107 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2022-02-21 04:17:17,151 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:17,152 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:17,152 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:17,152 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:17,152 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:17,152 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:17,152 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:17,153 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:17,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 171 states have internal predecessors, (236), 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 04:17:17,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2022-02-21 04:17:17,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:17,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:17,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,239 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:17,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 172 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 171 states have internal predecessors, (236), 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 04:17:17,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2022-02-21 04:17:17,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:17,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:17,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:17,278 INFO L791 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 59#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 67#L604true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 144#L597true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 6#L612true main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 173#L568true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 10#L542true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 140#L174-2true [2022-02-21 04:17:17,283 INFO L793 eck$LassoCheckResult]: Loop: 140#L174-2true assume !false; 7#L175true assume test_~splverifierCounter~0#1 < 4; 64#L176true test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 104#L184true assume !(0 != test_~tmp~0#1); 101#L184-2true test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 120#L194true assume !(0 != test_~tmp___0~0#1); 162#L194-2true test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 133#L204true assume 0 != test_~tmp___2~0#1; 157#L210-2true assume { :begin_inline_timeShift } true; 99#L243true assume !(0 != ~pumpRunning~0); 169#L243-2true assume !(0 != ~systemActive~0); 119#L250-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 154#L101true __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; 130#L458true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 43#L464-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 88#L260true assume { :end_inline_timeShift } true; 140#L174-2true [2022-02-21 04:17:17,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:17,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269341787] [2022-02-21 04:17:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,481 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash 376876726, now seen corresponding path program 1 times [2022-02-21 04:17:17,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81070777] [2022-02-21 04:17:17,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,507 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:17,521 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1732295802, now seen corresponding path program 1 times [2022-02-21 04:17:17,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:17,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964333277] [2022-02-21 04:17:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:17,692 INFO L290 TraceCheckUtils]: 0: Hoare triple {180#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:17,714 INFO L290 TraceCheckUtils]: 1: Hoare triple {182#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:17,715 INFO L290 TraceCheckUtils]: 2: Hoare triple {182#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {182#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:17,716 INFO L290 TraceCheckUtils]: 3: Hoare triple {182#(= 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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {183#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:17,716 INFO L290 TraceCheckUtils]: 4: Hoare triple {183#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {184#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} is VALID [2022-02-21 04:17:17,717 INFO L290 TraceCheckUtils]: 5: Hoare triple {184#(= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,717 INFO L290 TraceCheckUtils]: 6: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,718 INFO L290 TraceCheckUtils]: 7: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !false; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,719 INFO L290 TraceCheckUtils]: 8: Hoare triple {185#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,719 INFO L290 TraceCheckUtils]: 9: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,720 INFO L290 TraceCheckUtils]: 10: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,721 INFO L290 TraceCheckUtils]: 11: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,721 INFO L290 TraceCheckUtils]: 12: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,722 INFO L290 TraceCheckUtils]: 13: Hoare triple {185#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,722 INFO L290 TraceCheckUtils]: 14: Hoare triple {185#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,723 INFO L290 TraceCheckUtils]: 15: Hoare triple {185#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,723 INFO L290 TraceCheckUtils]: 16: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {185#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:17,724 INFO L290 TraceCheckUtils]: 17: Hoare triple {185#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {181#false} is VALID [2022-02-21 04:17:17,725 INFO L290 TraceCheckUtils]: 18: Hoare triple {181#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {181#false} is VALID [2022-02-21 04:17:17,726 INFO L290 TraceCheckUtils]: 19: Hoare triple {181#false} __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; {181#false} is VALID [2022-02-21 04:17:17,726 INFO L290 TraceCheckUtils]: 20: Hoare triple {181#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {181#false} is VALID [2022-02-21 04:17:17,726 INFO L290 TraceCheckUtils]: 21: Hoare triple {181#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {181#false} is VALID [2022-02-21 04:17:17,726 INFO L290 TraceCheckUtils]: 22: Hoare triple {181#false} assume { :end_inline_timeShift } true; {181#false} is VALID [2022-02-21 04:17:17,728 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 04:17:17,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:17,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964333277] [2022-02-21 04:17:17,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964333277] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:17,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:17,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:17,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358234809] [2022-02-21 04:17:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:17,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:17,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:17,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:17,885 INFO L87 Difference]: Start difference. First operand has 172 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 171 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:18,912 INFO L93 Difference]: Finished difference Result 401 states and 530 transitions. [2022-02-21 04:17:18,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:17:18,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:18,944 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:18,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 401 states and 530 transitions. [2022-02-21 04:17:18,980 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 259 [2022-02-21 04:17:18,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 401 states to 371 states and 500 transitions. [2022-02-21 04:17:18,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 371 [2022-02-21 04:17:18,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 371 [2022-02-21 04:17:18,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 371 states and 500 transitions. [2022-02-21 04:17:18,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:18,999 INFO L681 BuchiCegarLoop]: Abstraction has 371 states and 500 transitions. [2022-02-21 04:17:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states and 500 transitions. [2022-02-21 04:17:19,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 217. [2022-02-21 04:17:19,030 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:19,032 INFO L82 GeneralOperation]: Start isEquivalent. First operand 371 states and 500 transitions. Second operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 04:17:19,034 INFO L74 IsIncluded]: Start isIncluded. First operand 371 states and 500 transitions. Second operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 04:17:19,036 INFO L87 Difference]: Start difference. First operand 371 states and 500 transitions. Second operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 04:17:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,052 INFO L93 Difference]: Finished difference Result 371 states and 500 transitions. [2022-02-21 04:17:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 500 transitions. [2022-02-21 04:17:19,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,055 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,056 INFO L74 IsIncluded]: Start isIncluded. First operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 371 states and 500 transitions. [2022-02-21 04:17:19,057 INFO L87 Difference]: Start difference. First operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 371 states and 500 transitions. [2022-02-21 04:17:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,075 INFO L93 Difference]: Finished difference Result 371 states and 500 transitions. [2022-02-21 04:17:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 500 transitions. [2022-02-21 04:17:19,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,084 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,084 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:19,084 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:19,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 217 states have (on average 1.3456221198156681) internal successors, (292), 216 states have internal predecessors, (292), 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 04:17:19,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 292 transitions. [2022-02-21 04:17:19,101 INFO L704 BuchiCegarLoop]: Abstraction has 217 states and 292 transitions. [2022-02-21 04:17:19,101 INFO L587 BuchiCegarLoop]: Abstraction has 217 states and 292 transitions. [2022-02-21 04:17:19,101 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:19,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 217 states and 292 transitions. [2022-02-21 04:17:19,105 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 152 [2022-02-21 04:17:19,105 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:19,105 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:19,107 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:19,107 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] [2022-02-21 04:17:19,108 INFO L791 eck$LassoCheckResult]: Stem: 749#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 681#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 682#L604 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 690#L597 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 595#L612 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 596#L568 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 605#L542 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 606#L174-2 [2022-02-21 04:17:19,108 INFO L793 eck$LassoCheckResult]: Loop: 606#L174-2 assume !false; 597#L175 assume test_~splverifierCounter~0#1 < 4; 598#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 686#L184 assume !(0 != test_~tmp~0#1); 725#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 726#L194 assume !(0 != test_~tmp___0~0#1); 628#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 744#L204 assume 0 != test_~tmp___2~0#1; 608#L210-2 assume { :begin_inline_timeShift } true; 723#L243 assume !(0 != ~pumpRunning~0); 724#L243-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 731#L301 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 732#L275-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 666#L267-3 assume { :end_inline_processEnvironment__wrappee__base } true; 667#L275-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 737#L301-1 assume { :end_inline_processEnvironment } true; 735#L250-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 736#L101 __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; 741#L458 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 672#L464-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 673#L260 assume { :end_inline_timeShift } true; 606#L174-2 [2022-02-21 04:17:19,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:19,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053573080] [2022-02-21 04:17:19,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,126 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,141 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,142 INFO L85 PathProgramCache]: Analyzing trace with hash 202040288, now seen corresponding path program 1 times [2022-02-21 04:17:19,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262598071] [2022-02-21 04:17:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:19,160 INFO L290 TraceCheckUtils]: 0: Hoare triple {1555#true} assume !false; {1555#true} is VALID [2022-02-21 04:17:19,160 INFO L290 TraceCheckUtils]: 1: Hoare triple {1555#true} assume test_~splverifierCounter~0#1 < 4; {1555#true} is VALID [2022-02-21 04:17:19,160 INFO L290 TraceCheckUtils]: 2: Hoare triple {1555#true} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {1555#true} is VALID [2022-02-21 04:17:19,160 INFO L290 TraceCheckUtils]: 3: Hoare triple {1555#true} assume !(0 != test_~tmp~0#1); {1555#true} is VALID [2022-02-21 04:17:19,161 INFO L290 TraceCheckUtils]: 4: Hoare triple {1555#true} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {1555#true} is VALID [2022-02-21 04:17:19,161 INFO L290 TraceCheckUtils]: 5: Hoare triple {1555#true} assume !(0 != test_~tmp___0~0#1); {1555#true} is VALID [2022-02-21 04:17:19,161 INFO L290 TraceCheckUtils]: 6: Hoare triple {1555#true} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {1555#true} is VALID [2022-02-21 04:17:19,161 INFO L290 TraceCheckUtils]: 7: Hoare triple {1555#true} assume 0 != test_~tmp___2~0#1; {1555#true} is VALID [2022-02-21 04:17:19,162 INFO L290 TraceCheckUtils]: 8: Hoare triple {1555#true} assume { :begin_inline_timeShift } true; {1555#true} is VALID [2022-02-21 04:17:19,162 INFO L290 TraceCheckUtils]: 9: Hoare triple {1555#true} assume !(0 != ~pumpRunning~0); {1557#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:19,163 INFO L290 TraceCheckUtils]: 10: Hoare triple {1557#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1557#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:19,163 INFO L290 TraceCheckUtils]: 11: Hoare triple {1557#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1557#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:17:19,164 INFO L290 TraceCheckUtils]: 12: Hoare triple {1557#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1556#false} is VALID [2022-02-21 04:17:19,164 INFO L290 TraceCheckUtils]: 13: Hoare triple {1556#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1556#false} is VALID [2022-02-21 04:17:19,164 INFO L290 TraceCheckUtils]: 14: Hoare triple {1556#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1556#false} is VALID [2022-02-21 04:17:19,164 INFO L290 TraceCheckUtils]: 15: Hoare triple {1556#false} assume { :end_inline_processEnvironment } true; {1556#false} is VALID [2022-02-21 04:17:19,165 INFO L290 TraceCheckUtils]: 16: Hoare triple {1556#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1556#false} is VALID [2022-02-21 04:17:19,165 INFO L290 TraceCheckUtils]: 17: Hoare triple {1556#false} __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; {1556#false} is VALID [2022-02-21 04:17:19,165 INFO L290 TraceCheckUtils]: 18: Hoare triple {1556#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {1556#false} is VALID [2022-02-21 04:17:19,165 INFO L290 TraceCheckUtils]: 19: Hoare triple {1556#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1556#false} is VALID [2022-02-21 04:17:19,166 INFO L290 TraceCheckUtils]: 20: Hoare triple {1556#false} assume { :end_inline_timeShift } true; {1556#false} is VALID [2022-02-21 04:17:19,166 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 04:17:19,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:19,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262598071] [2022-02-21 04:17:19,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262598071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:19,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:19,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:17:19,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443542983] [2022-02-21 04:17:19,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:19,168 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:17:19,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:19,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:17:19,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:17:19,169 INFO L87 Difference]: Start difference. First operand 217 states and 292 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,404 INFO L93 Difference]: Finished difference Result 273 states and 352 transitions. [2022-02-21 04:17:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:17:19,405 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:19,419 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:19,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,429 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 195 [2022-02-21 04:17:19,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 273 states to 273 states and 352 transitions. [2022-02-21 04:17:19,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 273 [2022-02-21 04:17:19,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 273 [2022-02-21 04:17:19,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:19,439 INFO L681 BuchiCegarLoop]: Abstraction has 273 states and 352 transitions. [2022-02-21 04:17:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2022-02-21 04:17:19,449 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:19,450 INFO L82 GeneralOperation]: Start isEquivalent. First operand 273 states and 352 transitions. Second operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 04:17:19,450 INFO L74 IsIncluded]: Start isIncluded. First operand 273 states and 352 transitions. Second operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 04:17:19,451 INFO L87 Difference]: Start difference. First operand 273 states and 352 transitions. Second operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 04:17:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,459 INFO L93 Difference]: Finished difference Result 273 states and 352 transitions. [2022-02-21 04:17:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,460 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,461 INFO L74 IsIncluded]: Start isIncluded. First operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 273 states and 352 transitions. [2022-02-21 04:17:19,462 INFO L87 Difference]: Start difference. First operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 273 states and 352 transitions. [2022-02-21 04:17:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:19,469 INFO L93 Difference]: Finished difference Result 273 states and 352 transitions. [2022-02-21 04:17:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:19,470 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:19,471 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:19,471 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 273 states have (on average 1.2893772893772895) internal successors, (352), 272 states have internal predecessors, (352), 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 04:17:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 352 transitions. [2022-02-21 04:17:19,479 INFO L704 BuchiCegarLoop]: Abstraction has 273 states and 352 transitions. [2022-02-21 04:17:19,479 INFO L587 BuchiCegarLoop]: Abstraction has 273 states and 352 transitions. [2022-02-21 04:17:19,479 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:17:19,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 273 states and 352 transitions. [2022-02-21 04:17:19,481 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 195 [2022-02-21 04:17:19,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:19,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:19,482 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:19,482 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] [2022-02-21 04:17:19,482 INFO L791 eck$LassoCheckResult]: Stem: 2000#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1918#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1919#L604 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1928#L597 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1835#L612 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 1836#L568 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1844#L542 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 1845#L174-2 [2022-02-21 04:17:19,483 INFO L793 eck$LassoCheckResult]: Loop: 1845#L174-2 assume !false; 2076#L175 assume test_~splverifierCounter~0#1 < 4; 2077#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2101#L184 assume !(0 != test_~tmp~0#1); 2099#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 2097#L194 assume !(0 != test_~tmp___0~0#1); 2095#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2094#L204 assume 0 != test_~tmp___2~0#1; 2070#L210-2 assume { :begin_inline_timeShift } true; 2069#L243 assume !(0 != ~pumpRunning~0); 2005#L243-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1976#L301 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1977#L275-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1998#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1882#L146-1 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 1883#L403-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1849#L403-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1850#L409-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1933#L279-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1939#L267-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1975#L275-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1983#L301-1 assume { :end_inline_processEnvironment } true; 1984#L250-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 2092#L101 __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; 2087#L458 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 2086#L464-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2084#L260 assume { :end_inline_timeShift } true; 1845#L174-2 [2022-02-21 04:17:19,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:17:19,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921494533] [2022-02-21 04:17:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,496 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,508 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash 578475064, now seen corresponding path program 1 times [2022-02-21 04:17:19,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118412757] [2022-02-21 04:17:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:19,522 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash 953762804, now seen corresponding path program 1 times [2022-02-21 04:17:19,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:19,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304930741] [2022-02-21 04:17:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:19,587 INFO L290 TraceCheckUtils]: 0: Hoare triple {2657#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,588 INFO L290 TraceCheckUtils]: 1: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,589 INFO L290 TraceCheckUtils]: 2: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,589 INFO L290 TraceCheckUtils]: 3: Hoare triple {2659#(= ~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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,590 INFO L290 TraceCheckUtils]: 4: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,594 INFO L290 TraceCheckUtils]: 5: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,595 INFO L290 TraceCheckUtils]: 6: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,596 INFO L290 TraceCheckUtils]: 7: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !false; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,596 INFO L290 TraceCheckUtils]: 8: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,596 INFO L290 TraceCheckUtils]: 9: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,597 INFO L290 TraceCheckUtils]: 10: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~0#1); {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,597 INFO L290 TraceCheckUtils]: 11: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,598 INFO L290 TraceCheckUtils]: 12: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,598 INFO L290 TraceCheckUtils]: 13: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,598 INFO L290 TraceCheckUtils]: 14: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,599 INFO L290 TraceCheckUtils]: 15: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,599 INFO L290 TraceCheckUtils]: 16: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,600 INFO L290 TraceCheckUtils]: 17: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,600 INFO L290 TraceCheckUtils]: 18: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,601 INFO L290 TraceCheckUtils]: 19: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,601 INFO L290 TraceCheckUtils]: 20: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,602 INFO L290 TraceCheckUtils]: 21: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,602 INFO L290 TraceCheckUtils]: 22: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,602 INFO L290 TraceCheckUtils]: 23: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,603 INFO L290 TraceCheckUtils]: 24: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,603 INFO L290 TraceCheckUtils]: 25: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,604 INFO L290 TraceCheckUtils]: 26: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,605 INFO L290 TraceCheckUtils]: 27: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,605 INFO L290 TraceCheckUtils]: 28: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {2659#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:17:19,605 INFO L290 TraceCheckUtils]: 29: Hoare triple {2659#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {2660#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:17:19,606 INFO L290 TraceCheckUtils]: 30: Hoare triple {2660#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; {2661#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} is VALID [2022-02-21 04:17:19,606 INFO L290 TraceCheckUtils]: 31: Hoare triple {2661#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {2658#false} is VALID [2022-02-21 04:17:19,607 INFO L290 TraceCheckUtils]: 32: Hoare triple {2658#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {2658#false} is VALID [2022-02-21 04:17:19,607 INFO L290 TraceCheckUtils]: 33: Hoare triple {2658#false} assume { :end_inline_timeShift } true; {2658#false} is VALID [2022-02-21 04:17:19,608 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 04:17:19,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:19,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304930741] [2022-02-21 04:17:19,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304930741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:19,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:19,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:17:19,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16826141] [2022-02-21 04:17:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:19,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:19,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:17:19,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:17:19,820 INFO L87 Difference]: Start difference. First operand 273 states and 352 transitions. cyclomatic complexity: 82 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,673 INFO L93 Difference]: Finished difference Result 968 states and 1242 transitions. [2022-02-21 04:17:20,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:17:20,673 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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 04:17:20,700 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:20,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 968 states and 1242 transitions. [2022-02-21 04:17:20,762 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 738 [2022-02-21 04:17:20,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 968 states to 968 states and 1242 transitions. [2022-02-21 04:17:20,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 968 [2022-02-21 04:17:20,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 968 [2022-02-21 04:17:20,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 968 states and 1242 transitions. [2022-02-21 04:17:20,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:20,809 INFO L681 BuchiCegarLoop]: Abstraction has 968 states and 1242 transitions. [2022-02-21 04:17:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states and 1242 transitions. [2022-02-21 04:17:20,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 539. [2022-02-21 04:17:20,821 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:20,822 INFO L82 GeneralOperation]: Start isEquivalent. First operand 968 states and 1242 transitions. Second operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 04:17:20,823 INFO L74 IsIncluded]: Start isIncluded. First operand 968 states and 1242 transitions. Second operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 04:17:20,825 INFO L87 Difference]: Start difference. First operand 968 states and 1242 transitions. Second operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 04:17:20,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,864 INFO L93 Difference]: Finished difference Result 968 states and 1242 transitions. [2022-02-21 04:17:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1242 transitions. [2022-02-21 04:17:20,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:20,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:20,868 INFO L74 IsIncluded]: Start isIncluded. First operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 968 states and 1242 transitions. [2022-02-21 04:17:20,869 INFO L87 Difference]: Start difference. First operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 968 states and 1242 transitions. [2022-02-21 04:17:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:20,909 INFO L93 Difference]: Finished difference Result 968 states and 1242 transitions. [2022-02-21 04:17:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1242 transitions. [2022-02-21 04:17:20,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:20,910 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:20,911 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:20,911 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 539 states have (on average 1.2708719851576995) internal successors, (685), 538 states have internal predecessors, (685), 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 04:17:20,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 685 transitions. [2022-02-21 04:17:20,925 INFO L704 BuchiCegarLoop]: Abstraction has 539 states and 685 transitions. [2022-02-21 04:17:20,926 INFO L587 BuchiCegarLoop]: Abstraction has 539 states and 685 transitions. [2022-02-21 04:17:20,926 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:17:20,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 539 states and 685 transitions. [2022-02-21 04:17:20,935 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 390 [2022-02-21 04:17:20,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:20,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:20,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:20,937 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] [2022-02-21 04:17:20,937 INFO L791 eck$LassoCheckResult]: Stem: 3826#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 3728#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret29#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3729#L604 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3740#L597 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3642#L612 main_#t~ret29#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret29#1;havoc main_#t~ret29#1; 3643#L568 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3651#L542 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#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; 3652#L174-2 [2022-02-21 04:17:20,937 INFO L793 eck$LassoCheckResult]: Loop: 3652#L174-2 assume !false; 4100#L175 assume test_~splverifierCounter~0#1 < 4; 4101#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 4162#L184 assume !(0 != test_~tmp~0#1); 4160#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 4159#L194 assume !(0 != test_~tmp___0~0#1); 4157#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 4156#L204 assume 0 != test_~tmp___2~0#1; 3831#L210-2 assume { :begin_inline_timeShift } true; 3832#L243 assume !(0 != ~pumpRunning~0); 3838#L243-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3794#L301 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3795#L275-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret24#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~3#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#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~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3824#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3689#L146-1 isHighWaterLevel_#t~ret24#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~3#1 := isHighWaterLevel_#t~ret24#1;havoc isHighWaterLevel_#t~ret24#1; 3690#L403-3 assume 0 != isHighWaterLevel_~tmp~3#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3656#L403-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 3657#L409-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 3745#L279-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3751#L267-2 assume { :end_inline_processEnvironment__wrappee__base } true; 4116#L275-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4114#L301-1 assume { :end_inline_processEnvironment } true; 4110#L250-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret26#1, __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 4109#L101 __utac_acc__Specification3_spec__1_#t~ret26#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret26#1;havoc __utac_acc__Specification3_spec__1_#t~ret26#1; 4108#L458 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 4107#L133 __utac_acc__Specification3_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 4104#L464 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 4103#L464-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 4102#L260 assume { :end_inline_timeShift } true; 3652#L174-2 [2022-02-21 04:17:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:17:20,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629433031] [2022-02-21 04:17:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,962 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,971 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1865009163, now seen corresponding path program 1 times [2022-02-21 04:17:20,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729910779] [2022-02-21 04:17:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,979 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,984 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:20,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1739274439, now seen corresponding path program 1 times [2022-02-21 04:17:20,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:20,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392727264] [2022-02-21 04:17:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:20,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:20,998 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:21,012 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:23,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:23 BoogieIcfgContainer [2022-02-21 04:17:23,742 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:23,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:23,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:23,742 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:23,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:17" (3/4) ... [2022-02-21 04:17:23,746 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:23,810 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:23,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:23,811 INFO L158 Benchmark]: Toolchain (without parser) took 7993.54ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 57.1MB in the beginning and 51.0MB in the end (delta: 6.0MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,812 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:23,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.62ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 77.1MB in the end (delta: -20.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.38ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 72.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,813 INFO L158 Benchmark]: Boogie Preprocessor took 34.35ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,813 INFO L158 Benchmark]: RCFGBuilder took 691.44ms. Allocated memory is still 113.2MB. Free memory was 69.9MB in the beginning and 77.4MB in the end (delta: -7.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,813 INFO L158 Benchmark]: BuchiAutomizer took 6643.87ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 76.8MB in the beginning and 54.2MB in the end (delta: 22.7MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,814 INFO L158 Benchmark]: Witness Printer took 68.29ms. Allocated memory is still 153.1MB. Free memory was 54.2MB in the beginning and 51.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:23,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.62ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.7MB in the beginning and 77.1MB in the end (delta: -20.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.38ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 72.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.35ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.44ms. Allocated memory is still 113.2MB. Free memory was 69.9MB in the beginning and 77.4MB in the end (delta: -7.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6643.87ms. Allocated memory was 113.2MB in the beginning and 153.1MB in the end (delta: 39.8MB). Free memory was 76.8MB in the beginning and 54.2MB in the end (delta: 22.7MB). Peak memory consumption was 81.4MB. Max. memory is 16.1GB. * Witness Printer took 68.29ms. Allocated memory is still 153.1MB. Free memory was 54.2MB in the beginning and 51.0MB 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 539 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 583 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 539 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1824 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1824 mSDsluCounter, 2981 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2194 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 787 mSDtfsCounter, 119 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: 174]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78ef8946=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14ab3d67=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29a0ac9c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f60747c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3917a372=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d808bc1=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c75905e=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, tmp=0, \result=1, retValue_acc=0, \result=1, tmp___0=1, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b01d6d7=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d7e09a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a56af9c=0, tmp=0, tmp=1, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a5af59=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 174]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int retValue_acc ; [L560] int tmp ; [L564] FCALL select_helpers() [L565] FCALL select_features() [L566] CALL, EXPR valid_product() [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); [L566] RET, EXPR valid_product() [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) [L570] FCALL setup() [L571] CALL runTest() [L550] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L243] COND FALSE !(\read(pumpRunning)) [L250] COND TRUE \read(systemActive) [L252] CALL processEnvironment() [L298] int tmp ; [L301] COND FALSE !(\read(pumpRunning)) [L316] CALL processEnvironment__wrappee__highWaterSensor() [L272] int tmp ; [L275] COND TRUE ! pumpRunning [L277] CALL, EXPR isHighWaterLevel() [L395] int retValue_acc ; [L396] int tmp ; [L397] int tmp___0 ; [L401] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L401] RET, EXPR isHighWaterSensorDry() [L401] tmp = isHighWaterSensorDry() [L403] COND TRUE \read(tmp) [L404] tmp___0 = 0 [L408] retValue_acc = tmp___0 [L409] return (retValue_acc); [L277] RET, EXPR isHighWaterLevel() [L277] tmp = isHighWaterLevel() [L279] COND FALSE !(\read(tmp)) [L285] FCALL processEnvironment__wrappee__base() [L316] RET processEnvironment__wrappee__highWaterSensor() [L252] RET processEnvironment() [L258] CALL __utac_acc__Specification3_spec__1() [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; [L456] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L456] RET, EXPR isMethaneLevelCritical() [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L462] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L462] RET, EXPR getWaterLevel() [L462] tmp___0 = getWaterLevel() [L464] COND FALSE !(tmp___0 == 2) [L258] RET __utac_acc__Specification3_spec__1() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:23,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)