./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product63.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_spec4_product63.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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:10,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:10,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:10,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:10,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:10,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:10,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:10,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:10,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:10,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:10,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:10,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:10,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:10,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:10,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:10,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:10,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:10,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:10,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:10,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:10,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:10,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:10,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:10,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:10,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:10,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:10,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:10,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:10,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:10,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:10,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:10,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:10,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:10,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:10,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:10,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:10,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:10,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:10,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:10,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:10,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:10,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:10,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:10,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:10,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:10,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:10,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:10,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:10,628 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:10,628 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:10,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:10,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:10,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:10,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:10,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:10,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:10,632 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:10,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:10,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:10,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:10,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:10,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:10,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:10,634 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:10,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2022-02-21 04:18:10,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:10,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:10,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:10,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:10,861 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:10,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2022-02-21 04:18:10,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27120722/73e85abffdb646408946fa786a227cf5/FLAG173a4bc64 [2022-02-21 04:18:11,336 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:11,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2022-02-21 04:18:11,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27120722/73e85abffdb646408946fa786a227cf5/FLAG173a4bc64 [2022-02-21 04:18:11,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27120722/73e85abffdb646408946fa786a227cf5 [2022-02-21 04:18:11,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:11,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:11,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:11,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:11,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:11,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ca0e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11, skipping insertion in model container [2022-02-21 04:18:11,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:11,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:11,614 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_spec4_product63.cil.c[15018,15031] [2022-02-21 04:18:11,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:11,637 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:11,679 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_spec4_product63.cil.c[15018,15031] [2022-02-21 04:18:11,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:11,702 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:11,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11 WrapperNode [2022-02-21 04:18:11,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:11,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:11,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:11,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:11,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,777 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 59, calls inlined = 175, statements flattened = 1260 [2022-02-21 04:18:11,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:11,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:11,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:11,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:11,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:11,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:11,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:11,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:11,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (1/1) ... [2022-02-21 04:18:11,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:11,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:11,873 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 04:18:11,901 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 04:18:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:12,000 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:12,001 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:12,693 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:12,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:12,707 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:12,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12 BoogieIcfgContainer [2022-02-21 04:18:12,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:12,711 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:12,711 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:12,713 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:12,714 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:11" (1/3) ... [2022-02-21 04:18:12,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30b612b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:12, skipping insertion in model container [2022-02-21 04:18:12,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:11" (2/3) ... [2022-02-21 04:18:12,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30b612b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:12, skipping insertion in model container [2022-02-21 04:18:12,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:12,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12" (3/3) ... [2022-02-21 04:18:12,716 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2022-02-21 04:18:12,771 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:12,771 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:12,771 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:12,771 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:12,772 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:12,772 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:12,772 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:12,772 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:12,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 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 04:18:12,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:18:12,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:12,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:12,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,909 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 04:18:12,909 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:12,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 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 04:18:12,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2022-02-21 04:18:12,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:12,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:12,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,947 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 04:18:12,955 INFO L791 eck$LassoCheckResult]: Stem: 309#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 226#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 174#L542true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 274#L535true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 161#L550true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 136#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 253#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 292#L969-2true [2022-02-21 04:18:12,956 INFO L793 eck$LassoCheckResult]: Loop: 292#L969-2true assume !false; 32#L970true assume test_~splverifierCounter~0#1 < 4; 263#L971true test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 137#L979true assume !(0 != test_~tmp~11#1); 105#L979-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 217#L989true assume !(0 != test_~tmp___0~3#1); 61#L989-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 307#L999true assume 0 != test_~tmp___2~0#1; 212#L1005-2true assume { :begin_inline_timeShift } true; 230#L711true assume !(0 != ~pumpRunning~0); 77#L711-2true assume !(0 != ~systemActive~0); 322#L718-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 48#L664true __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 133#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 249#L566-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 75#L728true assume { :end_inline_timeShift } true; 292#L969-2true [2022-02-21 04:18:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:12,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492473627] [2022-02-21 04:18:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,112 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,153 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:13,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1022359812, now seen corresponding path program 1 times [2022-02-21 04:18:13,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463675967] [2022-02-21 04:18:13,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,173 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:13,178 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:13,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1917188408, now seen corresponding path program 1 times [2022-02-21 04:18:13,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:13,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634457574] [2022-02-21 04:18:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:13,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:13,323 INFO L290 TraceCheckUtils]: 0: Hoare triple {330#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,324 INFO L290 TraceCheckUtils]: 1: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,324 INFO L290 TraceCheckUtils]: 2: Hoare triple {332#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {332#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:13,325 INFO L290 TraceCheckUtils]: 3: Hoare triple {332#(= 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~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:13,325 INFO L290 TraceCheckUtils]: 4: Hoare triple {333#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {334#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:18:13,326 INFO L290 TraceCheckUtils]: 5: Hoare triple {334#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,326 INFO L290 TraceCheckUtils]: 6: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,327 INFO L290 TraceCheckUtils]: 7: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !false; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,328 INFO L290 TraceCheckUtils]: 8: Hoare triple {335#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,328 INFO L290 TraceCheckUtils]: 9: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,329 INFO L290 TraceCheckUtils]: 10: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~11#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,329 INFO L290 TraceCheckUtils]: 11: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,330 INFO L290 TraceCheckUtils]: 12: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3#1); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,330 INFO L290 TraceCheckUtils]: 13: Hoare triple {335#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,331 INFO L290 TraceCheckUtils]: 14: Hoare triple {335#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,331 INFO L290 TraceCheckUtils]: 15: Hoare triple {335#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,332 INFO L290 TraceCheckUtils]: 16: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {335#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:13,332 INFO L290 TraceCheckUtils]: 17: Hoare triple {335#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {331#false} is VALID [2022-02-21 04:18:13,333 INFO L290 TraceCheckUtils]: 18: Hoare triple {331#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {331#false} is VALID [2022-02-21 04:18:13,333 INFO L290 TraceCheckUtils]: 19: Hoare triple {331#false} __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; {331#false} is VALID [2022-02-21 04:18:13,333 INFO L290 TraceCheckUtils]: 20: Hoare triple {331#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); {331#false} is VALID [2022-02-21 04:18:13,334 INFO L290 TraceCheckUtils]: 21: Hoare triple {331#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {331#false} is VALID [2022-02-21 04:18:13,334 INFO L290 TraceCheckUtils]: 22: Hoare triple {331#false} assume { :end_inline_timeShift } true; {331#false} is VALID [2022-02-21 04:18:13,336 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 04:18:13,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:13,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634457574] [2022-02-21 04:18:13,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634457574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:13,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:13,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:13,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643313205] [2022-02-21 04:18:13,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:13,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:13,486 INFO L87 Difference]: Start difference. First operand has 322 states, 321 states have (on average 1.35202492211838) internal successors, (434), 321 states have internal predecessors, (434), 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 04:18:14,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,682 INFO L93 Difference]: Finished difference Result 695 states and 917 transitions. [2022-02-21 04:18:14,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:14,683 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 04:18:14,717 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 04:18:14,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 695 states and 917 transitions. [2022-02-21 04:18:14,761 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 455 [2022-02-21 04:18:14,796 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 695 states to 665 states and 887 transitions. [2022-02-21 04:18:14,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 665 [2022-02-21 04:18:14,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 665 [2022-02-21 04:18:14,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 665 states and 887 transitions. [2022-02-21 04:18:14,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:14,804 INFO L681 BuchiCegarLoop]: Abstraction has 665 states and 887 transitions. [2022-02-21 04:18:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states and 887 transitions. [2022-02-21 04:18:14,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 361. [2022-02-21 04:18:14,844 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:14,846 INFO L82 GeneralOperation]: Start isEquivalent. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:18:14,847 INFO L74 IsIncluded]: Start isIncluded. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:18:14,848 INFO L87 Difference]: Start difference. First operand 665 states and 887 transitions. Second operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:18:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,873 INFO L93 Difference]: Finished difference Result 665 states and 887 transitions. [2022-02-21 04:18:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 887 transitions. [2022-02-21 04:18:14,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,881 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,882 INFO L74 IsIncluded]: Start isIncluded. First operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 665 states and 887 transitions. [2022-02-21 04:18:14,883 INFO L87 Difference]: Start difference. First operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 665 states and 887 transitions. [2022-02-21 04:18:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:14,901 INFO L93 Difference]: Finished difference Result 665 states and 887 transitions. [2022-02-21 04:18:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 887 transitions. [2022-02-21 04:18:14,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:14,902 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:14,902 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:14,902 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 361 states have (on average 1.332409972299169) internal successors, (481), 360 states have internal predecessors, (481), 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 04:18:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2022-02-21 04:18:14,911 INFO L704 BuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-02-21 04:18:14,911 INFO L587 BuchiCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-02-21 04:18:14,911 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:14,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 361 states and 481 transitions. [2022-02-21 04:18:14,913 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2022-02-21 04:18:14,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:14,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:14,914 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,914 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:14,915 INFO L791 eck$LassoCheckResult]: Stem: 1344#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1318#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1285#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1286#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1269#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1241#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1242#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1164#L969-2 [2022-02-21 04:18:14,915 INFO L793 eck$LassoCheckResult]: Loop: 1164#L969-2 assume !false; 1089#L970 assume test_~splverifierCounter~0#1 < 4; 1090#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1243#L979 assume !(0 != test_~tmp~11#1); 1155#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1205#L989 assume !(0 != test_~tmp___0~3#1); 1142#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1143#L999 assume 0 != test_~tmp___2~0#1; 1145#L1005-2 assume { :begin_inline_timeShift } true; 1315#L711 assume !(0 != ~pumpRunning~0); 1166#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1167#L795 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1279#L632 isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1265#L856 processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 1254#L799 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1255#L846-1 assume { :end_inline_deactivatePump } true; 1080#L795-1 assume { :end_inline_processEnvironment } true; 1081#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1119#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 1120#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 1122#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1163#L728 assume { :end_inline_timeShift } true; 1164#L969-2 [2022-02-21 04:18:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:14,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266604223] [2022-02-21 04:18:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,933 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:14,944 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1369355091, now seen corresponding path program 1 times [2022-02-21 04:18:14,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:14,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967904266] [2022-02-21 04:18:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 0: Hoare triple {2731#true} assume !false; {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 1: Hoare triple {2731#true} assume test_~splverifierCounter~0#1 < 4; {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 2: Hoare triple {2731#true} test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 3: Hoare triple {2731#true} assume !(0 != test_~tmp~11#1); {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 4: Hoare triple {2731#true} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 5: Hoare triple {2731#true} assume !(0 != test_~tmp___0~3#1); {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 6: Hoare triple {2731#true} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {2731#true} is VALID [2022-02-21 04:18:14,957 INFO L290 TraceCheckUtils]: 7: Hoare triple {2731#true} assume 0 != test_~tmp___2~0#1; {2731#true} is VALID [2022-02-21 04:18:14,958 INFO L290 TraceCheckUtils]: 8: Hoare triple {2731#true} assume { :begin_inline_timeShift } true; {2731#true} is VALID [2022-02-21 04:18:14,958 INFO L290 TraceCheckUtils]: 9: Hoare triple {2731#true} assume !(0 != ~pumpRunning~0); {2733#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:14,958 INFO L290 TraceCheckUtils]: 10: Hoare triple {2733#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {2733#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 11: Hoare triple {2733#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret40#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 12: Hoare triple {2732#false} isMethaneAlarm_#t~ret40#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret40#1;havoc isMethaneAlarm_#t~ret40#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 13: Hoare triple {2732#false} processEnvironment_#t~ret38#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 14: Hoare triple {2732#false} assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 15: Hoare triple {2732#false} assume { :end_inline_deactivatePump } true; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 16: Hoare triple {2732#false} assume { :end_inline_processEnvironment } true; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 17: Hoare triple {2732#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 18: Hoare triple {2732#false} __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; {2732#false} is VALID [2022-02-21 04:18:14,959 INFO L290 TraceCheckUtils]: 19: Hoare triple {2732#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); {2732#false} is VALID [2022-02-21 04:18:14,960 INFO L290 TraceCheckUtils]: 20: Hoare triple {2732#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {2732#false} is VALID [2022-02-21 04:18:14,960 INFO L290 TraceCheckUtils]: 21: Hoare triple {2732#false} assume { :end_inline_timeShift } true; {2732#false} is VALID [2022-02-21 04:18:14,960 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 04:18:14,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:14,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967904266] [2022-02-21 04:18:14,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967904266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:14,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:14,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:14,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753172279] [2022-02-21 04:18:14,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:14,961 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:14,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:14,961 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:15,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,280 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:18:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:15,281 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:15,293 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:15,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,301 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:18:15,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 457 transitions. [2022-02-21 04:18:15,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2022-02-21 04:18:15,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2022-02-21 04:18:15,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:15,308 INFO L681 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:18:15,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-02-21 04:18:15,313 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:15,313 INFO L82 GeneralOperation]: Start isEquivalent. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:18:15,314 INFO L74 IsIncluded]: Start isIncluded. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:18:15,314 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. Second operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:18:15,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,320 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:18:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:15,321 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:15,321 INFO L74 IsIncluded]: Start isIncluded. First operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 363 states and 457 transitions. [2022-02-21 04:18:15,322 INFO L87 Difference]: Start difference. First operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 363 states and 457 transitions. [2022-02-21 04:18:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:15,328 INFO L93 Difference]: Finished difference Result 363 states and 457 transitions. [2022-02-21 04:18:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:15,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:15,328 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:15,328 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 363 states have (on average 1.258953168044077) internal successors, (457), 362 states have internal predecessors, (457), 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 04:18:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 457 transitions. [2022-02-21 04:18:15,336 INFO L704 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:18:15,336 INFO L587 BuchiCegarLoop]: Abstraction has 363 states and 457 transitions. [2022-02-21 04:18:15,336 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:15,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 457 transitions. [2022-02-21 04:18:15,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2022-02-21 04:18:15,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:15,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:15,337 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:15,337 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 04:18:15,337 INFO L791 eck$LassoCheckResult]: Stem: 3363#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 3334#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 3298#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3299#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 3285#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 3261#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 3262#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3200#L969-2 [2022-02-21 04:18:15,338 INFO L793 eck$LassoCheckResult]: Loop: 3200#L969-2 assume !false; 3355#L970 assume test_~splverifierCounter~0#1 < 4; 3347#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 3263#L979 assume !(0 != test_~tmp~11#1); 3190#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3233#L989 assume !(0 != test_~tmp___0~3#1); 3179#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 3180#L999 assume 0 != test_~tmp___2~0#1; 3182#L1005-2 assume { :begin_inline_timeShift } true; 3328#L711 assume !(0 != ~pumpRunning~0); 3203#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 3204#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 3292#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 3275#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 3188#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 3189#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 3234#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3304#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 3305#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 3309#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3131#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3104#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3167#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3129#L795-1 assume { :end_inline_processEnvironment } true; 3130#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3159#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 3160#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 3162#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3199#L728 assume { :end_inline_timeShift } true; 3200#L969-2 [2022-02-21 04:18:15,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:15,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:15,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:15,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556220378] [2022-02-21 04:18:15,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:15,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:15,346 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:15,354 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:15,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1645272579, now seen corresponding path program 1 times [2022-02-21 04:18:15,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:15,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460703052] [2022-02-21 04:18:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:15,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:15,379 INFO L290 TraceCheckUtils]: 0: Hoare triple {4191#true} assume !false; {4191#true} is VALID [2022-02-21 04:18:15,380 INFO L290 TraceCheckUtils]: 1: Hoare triple {4191#true} assume test_~splverifierCounter~0#1 < 4; {4191#true} is VALID [2022-02-21 04:18:15,380 INFO L290 TraceCheckUtils]: 2: Hoare triple {4191#true} test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {4191#true} is VALID [2022-02-21 04:18:15,380 INFO L290 TraceCheckUtils]: 3: Hoare triple {4191#true} assume !(0 != test_~tmp~11#1); {4191#true} is VALID [2022-02-21 04:18:15,380 INFO L290 TraceCheckUtils]: 4: Hoare triple {4191#true} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {4191#true} is VALID [2022-02-21 04:18:15,380 INFO L290 TraceCheckUtils]: 5: Hoare triple {4191#true} assume !(0 != test_~tmp___0~3#1); {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 6: Hoare triple {4191#true} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 7: Hoare triple {4191#true} assume 0 != test_~tmp___2~0#1; {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 8: Hoare triple {4191#true} assume { :begin_inline_timeShift } true; {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 9: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0); {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 10: Hoare triple {4191#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {4191#true} is VALID [2022-02-21 04:18:15,381 INFO L290 TraceCheckUtils]: 11: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; {4191#true} is VALID [2022-02-21 04:18:15,382 INFO L290 TraceCheckUtils]: 12: Hoare triple {4191#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {4191#true} is VALID [2022-02-21 04:18:15,382 INFO L290 TraceCheckUtils]: 13: Hoare triple {4191#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {4191#true} is VALID [2022-02-21 04:18:15,382 INFO L290 TraceCheckUtils]: 14: Hoare triple {4191#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {4193#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} is VALID [2022-02-21 04:18:15,383 INFO L290 TraceCheckUtils]: 15: Hoare triple {4193#(= |ULTIMATE.start_isHighWaterSensorDry_#res#1| 0)} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {4194#(= |ULTIMATE.start_isHighWaterLevel_~tmp~9#1| 0)} is VALID [2022-02-21 04:18:15,383 INFO L290 TraceCheckUtils]: 16: Hoare triple {4194#(= |ULTIMATE.start_isHighWaterLevel_~tmp~9#1| 0)} assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; {4192#false} is VALID [2022-02-21 04:18:15,383 INFO L290 TraceCheckUtils]: 17: Hoare triple {4192#false} isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; {4192#false} is VALID [2022-02-21 04:18:15,383 INFO L290 TraceCheckUtils]: 18: Hoare triple {4192#false} processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; {4192#false} is VALID [2022-02-21 04:18:15,383 INFO L290 TraceCheckUtils]: 19: Hoare triple {4192#false} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 20: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__base } true; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 21: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 22: Hoare triple {4192#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 23: Hoare triple {4192#false} assume { :end_inline_processEnvironment } true; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 24: Hoare triple {4192#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {4192#false} is VALID [2022-02-21 04:18:15,384 INFO L290 TraceCheckUtils]: 25: Hoare triple {4192#false} __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; {4192#false} is VALID [2022-02-21 04:18:15,385 INFO L290 TraceCheckUtils]: 26: Hoare triple {4192#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); {4192#false} is VALID [2022-02-21 04:18:15,385 INFO L290 TraceCheckUtils]: 27: Hoare triple {4192#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {4192#false} is VALID [2022-02-21 04:18:15,385 INFO L290 TraceCheckUtils]: 28: Hoare triple {4192#false} assume { :end_inline_timeShift } true; {4192#false} is VALID [2022-02-21 04:18:15,385 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 04:18:15,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:15,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460703052] [2022-02-21 04:18:15,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460703052] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:15,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:15,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:15,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249538793] [2022-02-21 04:18:15,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:15,386 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:15,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-21 04:18:15,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-21 04:18:15,387 INFO L87 Difference]: Start difference. First operand 363 states and 457 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,155 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:18:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:16,156 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:16,170 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:16,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1285 transitions. [2022-02-21 04:18:16,204 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 741 [2022-02-21 04:18:16,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 1039 states and 1285 transitions. [2022-02-21 04:18:16,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1039 [2022-02-21 04:18:16,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1039 [2022-02-21 04:18:16,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1039 states and 1285 transitions. [2022-02-21 04:18:16,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:16,237 INFO L681 BuchiCegarLoop]: Abstraction has 1039 states and 1285 transitions. [2022-02-21 04:18:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states and 1285 transitions. [2022-02-21 04:18:16,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 381. [2022-02-21 04:18:16,243 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:16,244 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:18:16,244 INFO L74 IsIncluded]: Start isIncluded. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:18:16,245 INFO L87 Difference]: Start difference. First operand 1039 states and 1285 transitions. Second operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:18:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,275 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:18:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1285 transitions. [2022-02-21 04:18:16,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:16,277 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:16,278 INFO L74 IsIncluded]: Start isIncluded. First operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 1039 states and 1285 transitions. [2022-02-21 04:18:16,279 INFO L87 Difference]: Start difference. First operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 1039 states and 1285 transitions. [2022-02-21 04:18:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:16,312 INFO L93 Difference]: Finished difference Result 1039 states and 1285 transitions. [2022-02-21 04:18:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1285 transitions. [2022-02-21 04:18:16,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:16,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:16,314 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:16,314 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 381 states have (on average 1.246719160104987) internal successors, (475), 380 states have internal predecessors, (475), 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 04:18:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2022-02-21 04:18:16,320 INFO L704 BuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-02-21 04:18:16,320 INFO L587 BuchiCegarLoop]: Abstraction has 381 states and 475 transitions. [2022-02-21 04:18:16,320 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:16,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 381 states and 475 transitions. [2022-02-21 04:18:16,321 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2022-02-21 04:18:16,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:16,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:16,322 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:16,322 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 04:18:16,322 INFO L791 eck$LassoCheckResult]: Stem: 5524#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 5487#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 5444#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 5445#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 5430#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 5407#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 5408#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5499#L969-2 [2022-02-21 04:18:16,322 INFO L793 eck$LassoCheckResult]: Loop: 5499#L969-2 assume !false; 5276#L970 assume test_~splverifierCounter~0#1 < 4; 5277#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 5409#L979 assume !(0 != test_~tmp~11#1); 5331#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 5378#L989 assume !(0 != test_~tmp___0~3#1); 5319#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 5320#L999 assume 0 != test_~tmp___2~0#1; 5476#L1005-2 assume { :begin_inline_timeShift } true; 5477#L711 assume !(0 != ~pumpRunning~0); 5346#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 5347#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 5438#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 5421#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 5328#L672-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 5329#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 5501#L914-9 assume !(0 != isHighWaterLevel_~tmp~9#1);isHighWaterLevel_~tmp___0~1#1 := 1; 5451#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 5452#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 5454#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 5271#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 5244#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 5306#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 5269#L795-1 assume { :end_inline_processEnvironment } true; 5270#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 5610#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 5608#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 5606#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 5605#L728 assume { :end_inline_timeShift } true; 5499#L969-2 [2022-02-21 04:18:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:18:16,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467492197] [2022-02-21 04:18:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:16,338 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:16,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:16,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466565, now seen corresponding path program 1 times [2022-02-21 04:18:16,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:16,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904428283] [2022-02-21 04:18:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:16,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:16,365 INFO L290 TraceCheckUtils]: 0: Hoare triple {7701#true} assume !false; {7701#true} is VALID [2022-02-21 04:18:16,365 INFO L290 TraceCheckUtils]: 1: Hoare triple {7701#true} assume test_~splverifierCounter~0#1 < 4; {7701#true} is VALID [2022-02-21 04:18:16,365 INFO L290 TraceCheckUtils]: 2: Hoare triple {7701#true} test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 3: Hoare triple {7701#true} assume !(0 != test_~tmp~11#1); {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 4: Hoare triple {7701#true} test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 5: Hoare triple {7701#true} assume !(0 != test_~tmp___0~3#1); {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 6: Hoare triple {7701#true} test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 7: Hoare triple {7701#true} assume 0 != test_~tmp___2~0#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 8: Hoare triple {7701#true} assume { :begin_inline_timeShift } true; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 9: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0); {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 10: Hoare triple {7701#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 11: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 12: Hoare triple {7701#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {7701#true} is VALID [2022-02-21 04:18:16,372 INFO L290 TraceCheckUtils]: 13: Hoare triple {7701#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {7701#true} is VALID [2022-02-21 04:18:16,373 INFO L290 TraceCheckUtils]: 14: Hoare triple {7701#true} assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {7701#true} is VALID [2022-02-21 04:18:16,373 INFO L290 TraceCheckUtils]: 15: Hoare triple {7701#true} isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; {7701#true} is VALID [2022-02-21 04:18:16,375 INFO L290 TraceCheckUtils]: 16: Hoare triple {7701#true} assume !(0 != isHighWaterLevel_~tmp~9#1);isHighWaterLevel_~tmp___0~1#1 := 1; {7703#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} is VALID [2022-02-21 04:18:16,375 INFO L290 TraceCheckUtils]: 17: Hoare triple {7703#(<= 1 |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1|)} isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; {7704#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 18: Hoare triple {7704#(<= 1 |ULTIMATE.start_isHighWaterLevel_#res#1|)} processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; {7705#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 19: Hoare triple {7705#(<= 1 |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5#1|)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {7702#false} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 20: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__base } true; {7702#false} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 21: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {7702#false} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 22: Hoare triple {7702#false} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {7702#false} is VALID [2022-02-21 04:18:16,376 INFO L290 TraceCheckUtils]: 23: Hoare triple {7702#false} assume { :end_inline_processEnvironment } true; {7702#false} is VALID [2022-02-21 04:18:16,377 INFO L290 TraceCheckUtils]: 24: Hoare triple {7702#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {7702#false} is VALID [2022-02-21 04:18:16,377 INFO L290 TraceCheckUtils]: 25: Hoare triple {7702#false} __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; {7702#false} is VALID [2022-02-21 04:18:16,377 INFO L290 TraceCheckUtils]: 26: Hoare triple {7702#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); {7702#false} is VALID [2022-02-21 04:18:16,377 INFO L290 TraceCheckUtils]: 27: Hoare triple {7702#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {7702#false} is VALID [2022-02-21 04:18:16,377 INFO L290 TraceCheckUtils]: 28: Hoare triple {7702#false} assume { :end_inline_timeShift } true; {7702#false} is VALID [2022-02-21 04:18:16,377 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 04:18:16,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:16,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904428283] [2022-02-21 04:18:16,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904428283] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:16,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:16,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:16,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100954294] [2022-02-21 04:18:16,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:16,378 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:16,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:16,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:16,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:16,379 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:17,252 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:18:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:17,252 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:17,268 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:17,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 907 states and 1123 transitions. [2022-02-21 04:18:17,293 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 653 [2022-02-21 04:18:17,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 907 states to 907 states and 1123 transitions. [2022-02-21 04:18:17,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 907 [2022-02-21 04:18:17,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 907 [2022-02-21 04:18:17,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 907 states and 1123 transitions. [2022-02-21 04:18:17,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:17,319 INFO L681 BuchiCegarLoop]: Abstraction has 907 states and 1123 transitions. [2022-02-21 04:18:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states and 1123 transitions. [2022-02-21 04:18:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 408. [2022-02-21 04:18:17,324 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:17,325 INFO L82 GeneralOperation]: Start isEquivalent. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:18:17,325 INFO L74 IsIncluded]: Start isIncluded. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:18:17,326 INFO L87 Difference]: Start difference. First operand 907 states and 1123 transitions. Second operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:18:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:17,353 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:18:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1123 transitions. [2022-02-21 04:18:17,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:17,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:17,356 INFO L74 IsIncluded]: Start isIncluded. First operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 907 states and 1123 transitions. [2022-02-21 04:18:17,356 INFO L87 Difference]: Start difference. First operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 907 states and 1123 transitions. [2022-02-21 04:18:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:17,380 INFO L93 Difference]: Finished difference Result 907 states and 1123 transitions. [2022-02-21 04:18:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1123 transitions. [2022-02-21 04:18:17,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:17,381 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:17,381 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:17,381 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 407 states have internal predecessors, (502), 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 04:18:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2022-02-21 04:18:17,388 INFO L704 BuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-02-21 04:18:17,388 INFO L587 BuchiCegarLoop]: Abstraction has 408 states and 502 transitions. [2022-02-21 04:18:17,388 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:18:17,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 408 states and 502 transitions. [2022-02-21 04:18:17,390 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 285 [2022-02-21 04:18:17,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:17,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:17,390 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:17,390 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 04:18:17,390 INFO L791 eck$LassoCheckResult]: Stem: 8915#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 8873#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 8830#L542 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8831#L535 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 8820#L550 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 8792#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 8793#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 8724#L969-2 [2022-02-21 04:18:17,391 INFO L793 eck$LassoCheckResult]: Loop: 8724#L969-2 assume !false; 8658#L970 assume test_~splverifierCounter~0#1 < 4; 8659#L971 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 9025#L979 assume !(0 != test_~tmp~11#1); 9023#L979-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 9021#L989 assume !(0 != test_~tmp___0~3#1); 8700#L989-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 8701#L999 assume 0 != test_~tmp___2~0#1; 8861#L1005-2 assume { :begin_inline_timeShift } true; 8862#L711 assume !(0 != ~pumpRunning~0); 8729#L711-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 8730#L795 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret37#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 8823#L769-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 8811#L743-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret49#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 8709#L672-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 8711#L677-3 isHighWaterLevel_#t~ret49#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret49#1;havoc isHighWaterLevel_#t~ret49#1; 8949#L914-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 8948#L914-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 8947#L920-3 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 8919#L747-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 8655#L735-6 assume { :end_inline_processEnvironment__wrappee__base } true; 8628#L743-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 8687#L769-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 8650#L795-1 assume { :end_inline_processEnvironment } true; 8651#L718-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret29#1, __utac_acc__Specification4_spec__1_#t~ret30#1, __utac_acc__Specification4_spec__1_~tmp~4#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~4#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 8917#L664 __utac_acc__Specification4_spec__1_#t~ret29#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~4#1 := __utac_acc__Specification4_spec__1_#t~ret29#1;havoc __utac_acc__Specification4_spec__1_#t~ret29#1; 8787#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4#1); 8682#L566-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 8723#L728 assume { :end_inline_timeShift } true; 8724#L969-2 [2022-02-21 04:18:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2022-02-21 04:18:17,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:17,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000009620] [2022-02-21 04:18:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:17,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,405 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:17,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1369831039, now seen corresponding path program 1 times [2022-02-21 04:18:17,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:17,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711190359] [2022-02-21 04:18:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:17,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,415 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,430 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:17,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1495565763, now seen corresponding path program 1 times [2022-02-21 04:18:17,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:17,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119862757] [2022-02-21 04:18:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:17,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,441 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:17,462 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:20,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:20 BoogieIcfgContainer [2022-02-21 04:18:20,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:20,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:20,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:20,131 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:20,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:12" (3/4) ... [2022-02-21 04:18:20,133 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:20,175 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:20,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:20,179 INFO L158 Benchmark]: Toolchain (without parser) took 8818.00ms. Allocated memory was 98.6MB in the beginning and 195.0MB in the end (delta: 96.5MB). Free memory was 65.9MB in the beginning and 85.9MB in the end (delta: -20.0MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,179 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 98.6MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:20,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.90ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 60.8MB in the end (delta: 4.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.51ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 54.0MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,180 INFO L158 Benchmark]: Boogie Preprocessor took 41.20ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 49.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,180 INFO L158 Benchmark]: RCFGBuilder took 889.41ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 49.8MB in the beginning and 57.7MB in the end (delta: -7.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,182 INFO L158 Benchmark]: BuchiAutomizer took 7419.18ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 57.7MB in the beginning and 89.0MB in the end (delta: -31.3MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,182 INFO L158 Benchmark]: Witness Printer took 46.90ms. Allocated memory is still 195.0MB. Free memory was 89.0MB in the beginning and 85.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:20,183 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 0.23ms. Allocated memory is still 98.6MB. Free memory was 53.4MB in the beginning and 53.4MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.90ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 60.8MB in the end (delta: 4.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.51ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 54.0MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.20ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 49.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 889.41ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 49.8MB in the beginning and 57.7MB in the end (delta: -7.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 7419.18ms. Allocated memory was 121.6MB in the beginning and 195.0MB in the end (delta: 73.4MB). Free memory was 57.7MB in the beginning and 89.0MB in the end (delta: -31.3MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * Witness Printer took 46.90ms. Allocated memory is still 195.0MB. Free memory was 89.0MB in the beginning and 85.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 408 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.2s. Büchi inclusion checks took 3.0s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 1461 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 408 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3439 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3439 mSDsluCounter, 5273 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3443 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 314 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 1830 mSDtfsCounter, 314 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 969]: 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@65f14d75=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@384f2f7b=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@523ee9ab=29, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b91bb6f=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@531bf7aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4efe5f3c=0, tmp___0=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38d367a8=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, retValue_acc=1, retValue_acc=0, tmp=1, \result=1, \result=1, retValue_acc=1, tmp=1, tmp___2=29, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a7a25ce=0, \result=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e61a725=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b16d140=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b4ecca5=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 969]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L960] int splverifierCounter ; [L961] int tmp ; [L962] int tmp___0 ; [L963] int tmp___1 ; [L964] int tmp___2 ; [L967] splverifierCounter = 0 Loop: [L969] COND TRUE 1 [L971] COND TRUE splverifierCounter < 4 [L977] tmp = __VERIFIER_nondet_int() [L979] COND FALSE !(\read(tmp)) [L987] tmp___0 = __VERIFIER_nondet_int() [L989] COND FALSE !(\read(tmp___0)) [L997] tmp___2 = __VERIFIER_nondet_int() [L999] COND TRUE \read(tmp___2) [L1014] CALL timeShift() [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L720] CALL processEnvironment() [L792] int tmp ; [L795] COND FALSE !(\read(pumpRunning)) [L810] CALL processEnvironment__wrappee__methaneQuery() [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L784] CALL processEnvironment__wrappee__highWaterSensor() [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L745] CALL, EXPR isHighWaterLevel() [L906] int retValue_acc ; [L907] int tmp ; [L908] int tmp___0 ; [L912] CALL, EXPR isHighWaterSensorDry() [L669] int retValue_acc ; [L672] COND TRUE waterLevel < 2 [L673] retValue_acc = 1 [L674] return (retValue_acc); [L912] RET, EXPR isHighWaterSensorDry() [L912] tmp = isHighWaterSensorDry() [L914] COND TRUE \read(tmp) [L915] tmp___0 = 0 [L919] retValue_acc = tmp___0 [L920] return (retValue_acc); [L745] RET, EXPR isHighWaterLevel() [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L753] FCALL processEnvironment__wrappee__base() [L784] RET processEnvironment__wrappee__highWaterSensor() [L810] RET processEnvironment__wrappee__methaneQuery() [L720] RET processEnvironment() [L726] CALL __utac_acc__Specification4_spec__1() [L559] int tmp ; [L560] int tmp___0 ; [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) [L726] RET __utac_acc__Specification4_spec__1() [L1014] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:20,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)