./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_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_spec2_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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:33,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:33,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:33,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:33,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:33,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:33,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:33,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:33,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:33,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:33,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:33,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:33,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:33,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:33,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:33,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:33,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:33,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:33,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:33,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:33,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:33,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:33,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:33,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:33,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:33,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:33,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:33,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:33,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:33,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:33,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:33,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:33,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:33,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:33,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:33,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:33,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:33,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:33,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:33,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:33,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:33,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:33,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:33,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:33,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:33,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:33,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:33,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:33,861 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:33,861 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:33,861 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:33,861 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:33,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:33,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:33,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:33,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:33,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:33,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:33,864 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:33,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2022-02-21 04:16:34,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:34,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:34,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:34,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:34,080 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:34,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2022-02-21 04:16:34,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616df6e23/2dca31b99a4740ac89654f6ab3ae2a7f/FLAG9357fe7dc [2022-02-21 04:16:34,578 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:34,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2022-02-21 04:16:34,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616df6e23/2dca31b99a4740ac89654f6ab3ae2a7f/FLAG9357fe7dc [2022-02-21 04:16:34,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616df6e23/2dca31b99a4740ac89654f6ab3ae2a7f [2022-02-21 04:16:34,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:34,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:34,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:34,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:34,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:34,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:34" (1/1) ... [2022-02-21 04:16:34,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72af61c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:34, skipping insertion in model container [2022-02-21 04:16:34,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:34" (1/1) ... [2022-02-21 04:16:34,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:34,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:34,854 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_spec2_product63.cil.c[2985,2998] [2022-02-21 04:16:34,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:34,951 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:34,982 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_spec2_product63.cil.c[2985,2998] [2022-02-21 04:16:35,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:35,051 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:35,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35 WrapperNode [2022-02-21 04:16:35,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:35,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:35,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:35,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:35,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,147 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 60, calls inlined = 176, statements flattened = 1276 [2022-02-21 04:16:35,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:35,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:35,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:35,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:35,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:35,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:35,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:35,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:35,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (1/1) ... [2022-02-21 04:16:35,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:35,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:35,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:35,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:35,339 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:35,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:36,000 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:36,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:36,018 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:36,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:36 BoogieIcfgContainer [2022-02-21 04:16:36,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:36,021 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:36,021 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:36,025 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:36,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:36,026 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:34" (1/3) ... [2022-02-21 04:16:36,026 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49ffdd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:36, skipping insertion in model container [2022-02-21 04:16:36,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:36,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:35" (2/3) ... [2022-02-21 04:16:36,027 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49ffdd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:36, skipping insertion in model container [2022-02-21 04:16:36,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:36,027 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:36" (3/3) ... [2022-02-21 04:16:36,028 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2022-02-21 04:16:36,064 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:36,064 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:36,064 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:36,064 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:36,064 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:36,064 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:36,064 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:36,065 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:36,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.356923076923077) internal successors, (441), 325 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:36,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-02-21 04:16:36,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:36,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:36,141 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:36,141 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 04:16:36,142 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:36,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 326 states, 325 states have (on average 1.356923076923077) internal successors, (441), 325 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:36,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-02-21 04:16:36,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:36,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:36,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:36,163 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 04:16:36,167 INFO L791 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 208#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 133#L661true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 131#L654true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 135#L669true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 117#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 304#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 69#L173true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 118#L325-2true [2022-02-21 04:16:36,167 INFO L793 eck$LassoCheckResult]: Loop: 118#L325-2true assume !false; 193#L326true assume test_~splverifierCounter~0#1 < 4; 184#L327true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 26#L335true assume !(0 != test_~tmp~2#1); 40#L335-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 148#L345true assume !(0 != test_~tmp___0~1#1); 306#L345-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 199#L355true assume 0 != test_~tmp___2~0#1; 297#L361-2true assume { :begin_inline_timeShift } true; 100#L391true assume !(0 != ~pumpRunning~0); 4#L391-2true assume !(0 != ~systemActive~0); 41#L398-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 231#L254-5true __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 99#L184true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 149#L184-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 298#L408true assume { :end_inline_timeShift } true; 118#L325-2true [2022-02-21 04:16:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:16:36,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:36,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292537118] [2022-02-21 04:16:36,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:36,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:36,278 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:36,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash -605400502, now seen corresponding path program 1 times [2022-02-21 04:16:36,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:36,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989961287] [2022-02-21 04:16:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:36,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:36,287 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:36,292 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:36,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash -767687885, now seen corresponding path program 1 times [2022-02-21 04:16:36,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:36,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802009826] [2022-02-21 04:16:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:36,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:36,434 INFO L290 TraceCheckUtils]: 0: Hoare triple {334#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {336#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:36,435 INFO L290 TraceCheckUtils]: 1: Hoare triple {336#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {336#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:36,435 INFO L290 TraceCheckUtils]: 2: Hoare triple {336#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {336#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:36,436 INFO L290 TraceCheckUtils]: 3: Hoare triple {336#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {337#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:36,436 INFO L290 TraceCheckUtils]: 4: Hoare triple {337#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {338#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:16:36,437 INFO L290 TraceCheckUtils]: 5: Hoare triple {338#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,437 INFO L290 TraceCheckUtils]: 6: Hoare triple {339#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,438 INFO L290 TraceCheckUtils]: 7: Hoare triple {339#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,438 INFO L290 TraceCheckUtils]: 8: Hoare triple {339#(not (= 0 ~systemActive~0))} assume !false; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,439 INFO L290 TraceCheckUtils]: 9: Hoare triple {339#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,439 INFO L290 TraceCheckUtils]: 10: Hoare triple {339#(not (= 0 ~systemActive~0))} test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,440 INFO L290 TraceCheckUtils]: 11: Hoare triple {339#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~2#1); {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,440 INFO L290 TraceCheckUtils]: 12: Hoare triple {339#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,441 INFO L290 TraceCheckUtils]: 13: Hoare triple {339#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,441 INFO L290 TraceCheckUtils]: 14: Hoare triple {339#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,442 INFO L290 TraceCheckUtils]: 15: Hoare triple {339#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,442 INFO L290 TraceCheckUtils]: 16: Hoare triple {339#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,443 INFO L290 TraceCheckUtils]: 17: Hoare triple {339#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {339#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:36,443 INFO L290 TraceCheckUtils]: 18: Hoare triple {339#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {335#false} is VALID [2022-02-21 04:16:36,443 INFO L290 TraceCheckUtils]: 19: Hoare triple {335#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {335#false} is VALID [2022-02-21 04:16:36,443 INFO L290 TraceCheckUtils]: 20: Hoare triple {335#false} __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; {335#false} is VALID [2022-02-21 04:16:36,444 INFO L290 TraceCheckUtils]: 21: Hoare triple {335#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; {335#false} is VALID [2022-02-21 04:16:36,444 INFO L290 TraceCheckUtils]: 22: Hoare triple {335#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {335#false} is VALID [2022-02-21 04:16:36,444 INFO L290 TraceCheckUtils]: 23: Hoare triple {335#false} assume { :end_inline_timeShift } true; {335#false} is VALID [2022-02-21 04:16:36,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:36,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:36,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802009826] [2022-02-21 04:16:36,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802009826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:36,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:36,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:36,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272183378] [2022-02-21 04:16:36,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:36,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:36,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:36,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:36,561 INFO L87 Difference]: Start difference. First operand has 326 states, 325 states have (on average 1.356923076923077) internal successors, (441), 325 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:37,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:37,887 INFO L93 Difference]: Finished difference Result 705 states and 936 transitions. [2022-02-21 04:16:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:37,888 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:37,909 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:37,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 936 transitions. [2022-02-21 04:16:37,939 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 461 [2022-02-21 04:16:37,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 675 states and 906 transitions. [2022-02-21 04:16:37,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 675 [2022-02-21 04:16:37,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 675 [2022-02-21 04:16:37,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 906 transitions. [2022-02-21 04:16:37,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:37,970 INFO L681 BuchiCegarLoop]: Abstraction has 675 states and 906 transitions. [2022-02-21 04:16:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 906 transitions. [2022-02-21 04:16:37,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 368. [2022-02-21 04:16:37,998 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:38,000 INFO L82 GeneralOperation]: Start isEquivalent. First operand 675 states and 906 transitions. Second operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,000 INFO L74 IsIncluded]: Start isIncluded. First operand 675 states and 906 transitions. Second operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,002 INFO L87 Difference]: Start difference. First operand 675 states and 906 transitions. Second operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:38,024 INFO L93 Difference]: Finished difference Result 675 states and 906 transitions. [2022-02-21 04:16:38,024 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 906 transitions. [2022-02-21 04:16:38,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:38,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:38,028 INFO L74 IsIncluded]: Start isIncluded. First operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 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 675 states and 906 transitions. [2022-02-21 04:16:38,029 INFO L87 Difference]: Start difference. First operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 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 675 states and 906 transitions. [2022-02-21 04:16:38,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:38,048 INFO L93 Difference]: Finished difference Result 675 states and 906 transitions. [2022-02-21 04:16:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 906 transitions. [2022-02-21 04:16:38,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:38,049 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:38,049 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:38,049 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:38,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 368 states have (on average 1.3423913043478262) internal successors, (494), 367 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 494 transitions. [2022-02-21 04:16:38,058 INFO L704 BuchiCegarLoop]: Abstraction has 368 states and 494 transitions. [2022-02-21 04:16:38,058 INFO L587 BuchiCegarLoop]: Abstraction has 368 states and 494 transitions. [2022-02-21 04:16:38,058 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:38,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 368 states and 494 transitions. [2022-02-21 04:16:38,059 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 252 [2022-02-21 04:16:38,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:38,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:38,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:38,060 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 04:16:38,060 INFO L791 eck$LassoCheckResult]: Stem: 1361#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1261#L661 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1259#L654 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1260#L669 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1235#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1236#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1175#L173 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1176#L325-2 [2022-02-21 04:16:38,061 INFO L793 eck$LassoCheckResult]: Loop: 1176#L325-2 assume !false; 1237#L326 assume test_~splverifierCounter~0#1 < 4; 1301#L327 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1097#L335 assume !(0 != test_~tmp~2#1); 1099#L335-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1122#L345 assume !(0 != test_~tmp___0~1#1); 1177#L345-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1313#L355 assume 0 != test_~tmp___2~0#1; 1314#L361-2 assume { :begin_inline_timeShift } true; 1214#L391 assume !(0 != ~pumpRunning~0); 1051#L391-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1052#L475 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1171#L254 isMethaneAlarm_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret20#1;havoc isMethaneAlarm_#t~ret20#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 1172#L536 processEnvironment_#t~ret18#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret18#1;havoc processEnvironment_#t~ret18#1; 1345#L479 assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1210#L526-1 assume { :end_inline_deactivatePump } true; 1182#L475-1 assume { :end_inline_processEnvironment } true; 1124#L398-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 1125#L254-5 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 1213#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1081#L184-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1276#L408 assume { :end_inline_timeShift } true; 1176#L325-2 [2022-02-21 04:16:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:16:38,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:38,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082298211] [2022-02-21 04:16:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,074 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,087 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:38,088 INFO L85 PathProgramCache]: Analyzing trace with hash 145290931, now seen corresponding path program 1 times [2022-02-21 04:16:38,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:38,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565208187] [2022-02-21 04:16:38,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:38,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:38,101 INFO L290 TraceCheckUtils]: 0: Hoare triple {2772#true} assume !false; {2772#true} is VALID [2022-02-21 04:16:38,101 INFO L290 TraceCheckUtils]: 1: Hoare triple {2772#true} assume test_~splverifierCounter~0#1 < 4; {2772#true} is VALID [2022-02-21 04:16:38,101 INFO L290 TraceCheckUtils]: 2: Hoare triple {2772#true} test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; {2772#true} is VALID [2022-02-21 04:16:38,101 INFO L290 TraceCheckUtils]: 3: Hoare triple {2772#true} assume !(0 != test_~tmp~2#1); {2772#true} is VALID [2022-02-21 04:16:38,101 INFO L290 TraceCheckUtils]: 4: Hoare triple {2772#true} test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; {2772#true} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 5: Hoare triple {2772#true} assume !(0 != test_~tmp___0~1#1); {2772#true} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 6: Hoare triple {2772#true} test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; {2772#true} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 7: Hoare triple {2772#true} assume 0 != test_~tmp___2~0#1; {2772#true} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 8: Hoare triple {2772#true} assume { :begin_inline_timeShift } true; {2772#true} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 9: Hoare triple {2772#true} assume !(0 != ~pumpRunning~0); {2774#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:38,102 INFO L290 TraceCheckUtils]: 10: Hoare triple {2774#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {2774#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 11: Hoare triple {2774#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret20#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {2773#false} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 12: Hoare triple {2773#false} isMethaneAlarm_#t~ret20#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret20#1;havoc isMethaneAlarm_#t~ret20#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; {2773#false} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 13: Hoare triple {2773#false} processEnvironment_#t~ret18#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret18#1;havoc processEnvironment_#t~ret18#1; {2773#false} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 14: Hoare triple {2773#false} assume 0 != processEnvironment_~tmp~5#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2773#false} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 15: Hoare triple {2773#false} assume { :end_inline_deactivatePump } true; {2773#false} is VALID [2022-02-21 04:16:38,103 INFO L290 TraceCheckUtils]: 16: Hoare triple {2773#false} assume { :end_inline_processEnvironment } true; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L290 TraceCheckUtils]: 17: Hoare triple {2773#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L290 TraceCheckUtils]: 18: Hoare triple {2773#false} __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L290 TraceCheckUtils]: 19: Hoare triple {2773#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L290 TraceCheckUtils]: 20: Hoare triple {2773#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L290 TraceCheckUtils]: 21: Hoare triple {2773#false} assume { :end_inline_timeShift } true; {2773#false} is VALID [2022-02-21 04:16:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:38,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:38,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565208187] [2022-02-21 04:16:38,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565208187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:38,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:38,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:38,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428475018] [2022-02-21 04:16:38,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:38,105 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:38,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:38,106 INFO L87 Difference]: Start difference. First operand 368 states and 494 transitions. cyclomatic complexity: 129 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 04:16:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:38,383 INFO L93 Difference]: Finished difference Result 373 states and 476 transitions. [2022-02-21 04:16:38,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:38,383 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 04:16:38,396 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 04:16:38,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,404 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2022-02-21 04:16:38,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 373 states to 373 states and 476 transitions. [2022-02-21 04:16:38,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 373 [2022-02-21 04:16:38,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 373 [2022-02-21 04:16:38,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:38,411 INFO L681 BuchiCegarLoop]: Abstraction has 373 states and 476 transitions. [2022-02-21 04:16:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2022-02-21 04:16:38,417 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:38,418 INFO L82 GeneralOperation]: Start isEquivalent. First operand 373 states and 476 transitions. Second operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,419 INFO L74 IsIncluded]: Start isIncluded. First operand 373 states and 476 transitions. Second operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,419 INFO L87 Difference]: Start difference. First operand 373 states and 476 transitions. Second operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:38,425 INFO L93 Difference]: Finished difference Result 373 states and 476 transitions. [2022-02-21 04:16:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:38,425 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:38,426 INFO L74 IsIncluded]: Start isIncluded. First operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 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 373 states and 476 transitions. [2022-02-21 04:16:38,426 INFO L87 Difference]: Start difference. First operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 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 373 states and 476 transitions. [2022-02-21 04:16:38,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:38,444 INFO L93 Difference]: Finished difference Result 373 states and 476 transitions. [2022-02-21 04:16:38,444 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:38,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:38,445 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:38,445 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 373 states have (on average 1.2761394101876675) internal successors, (476), 372 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 476 transitions. [2022-02-21 04:16:38,451 INFO L704 BuchiCegarLoop]: Abstraction has 373 states and 476 transitions. [2022-02-21 04:16:38,451 INFO L587 BuchiCegarLoop]: Abstraction has 373 states and 476 transitions. [2022-02-21 04:16:38,451 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:38,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 373 states and 476 transitions. [2022-02-21 04:16:38,452 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 261 [2022-02-21 04:16:38,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:38,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:38,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:38,453 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 04:16:38,453 INFO L791 eck$LassoCheckResult]: Stem: 3423#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3388#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 3335#L661 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3332#L654 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3333#L669 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 3314#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3315#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 3256#L173 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3257#L325-2 [2022-02-21 04:16:38,467 INFO L793 eck$LassoCheckResult]: Loop: 3257#L325-2 assume !false; 3378#L326 assume test_~splverifierCounter~0#1 < 4; 3379#L327 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 3519#L335 assume !(0 != test_~tmp~2#1); 3517#L335-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 3347#L345 assume !(0 != test_~tmp___0~1#1); 3259#L345-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 3498#L355 assume 0 != test_~tmp___2~0#1; 3497#L361-2 assume { :begin_inline_timeShift } true; 3494#L391 assume !(0 != ~pumpRunning~0); 3150#L391-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret18#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 3151#L475 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret17#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 3281#L449-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 3367#L423-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret29#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~3#1;havoc isHighWaterSensorDry_~retValue_acc~3#1; 3384#L294-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~3#1; 3308#L299-3 isHighWaterLevel_#t~ret29#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret29#1;havoc isHighWaterLevel_#t~ret29#1; 3260#L594-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~2#1 := 0; 3261#L594-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3217#L600-3 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 3218#L427-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3178#L415-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3179#L423-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3210#L449-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 3266#L475-1 assume { :end_inline_processEnvironment } true; 3208#L398-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;havoc isMethaneLevelCritical_~retValue_acc~1#1;isMethaneLevelCritical_~retValue_acc~1#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~1#1; 3209#L254-5 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 3291#L184 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 3173#L184-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 3511#L408 assume { :end_inline_timeShift } true; 3257#L325-2 [2022-02-21 04:16:38,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:16:38,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:38,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067378251] [2022-02-21 04:16:38,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:38,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,513 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1207909705, now seen corresponding path program 1 times [2022-02-21 04:16:38,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:38,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559681957] [2022-02-21 04:16:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:38,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,532 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,537 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2114326272, now seen corresponding path program 1 times [2022-02-21 04:16:38,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:38,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568475957] [2022-02-21 04:16:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:38,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:38,560 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:41,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:41 BoogieIcfgContainer [2022-02-21 04:16:41,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:41,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:41,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:41,534 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:41,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:36" (3/4) ... [2022-02-21 04:16:41,536 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:41,586 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:41,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:41,588 INFO L158 Benchmark]: Toolchain (without parser) took 6977.51ms. Allocated memory was 96.5MB in the beginning and 218.1MB in the end (delta: 121.6MB). Free memory was 63.0MB in the beginning and 178.2MB in the end (delta: -115.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,588 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:41,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.51ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 59.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.83ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 52.6MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,589 INFO L158 Benchmark]: Boogie Preprocessor took 39.09ms. Allocated memory is still 96.5MB. Free memory was 52.6MB in the beginning and 48.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,590 INFO L158 Benchmark]: RCFGBuilder took 831.26ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 68.2MB in the end (delta: -19.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,593 INFO L158 Benchmark]: BuchiAutomizer took 5512.29ms. Allocated memory was 96.5MB in the beginning and 218.1MB in the end (delta: 121.6MB). Free memory was 68.2MB in the beginning and 180.3MB in the end (delta: -112.2MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,594 INFO L158 Benchmark]: Witness Printer took 52.69ms. Allocated memory is still 218.1MB. Free memory was 180.3MB in the beginning and 178.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:41,595 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 0.16ms. Allocated memory is still 79.7MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.51ms. Allocated memory is still 96.5MB. Free memory was 63.0MB in the beginning and 59.5MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.83ms. Allocated memory is still 96.5MB. Free memory was 59.5MB in the beginning and 52.6MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.09ms. Allocated memory is still 96.5MB. Free memory was 52.6MB in the beginning and 48.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 831.26ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 68.2MB in the end (delta: -19.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5512.29ms. Allocated memory was 96.5MB in the beginning and 218.1MB in the end (delta: 121.6MB). Free memory was 68.2MB in the beginning and 180.3MB in the end (delta: -112.2MB). Peak memory consumption was 127.6MB. Max. memory is 16.1GB. * Witness Printer took 52.69ms. Allocated memory is still 218.1MB. Free memory was 180.3MB in the beginning and 178.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 373 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 307 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 373 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1905 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1905 mSDsluCounter, 2458 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1717 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 741 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 325]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6291836a=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@370523a9=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dc47b92=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73632a5d=0, retValue_acc=0, \result=1, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6740b2ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1676d42f=29, tmp=0, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53b2f827=0, tmp___0=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13f283b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d45d6ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@175ca5a0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4afc7d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 325]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L167] int methAndRunningLastTime ; [L211] int waterLevel = 1; [L212] int methaneLevelCritical = 0; [L384] int pumpRunning = 0; [L385] int systemActive = 1; [L843] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L665] int retValue_acc ; [L668] retValue_acc = 1 [L669] return (retValue_acc); [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L172] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L316] int splverifierCounter ; [L317] int tmp ; [L318] int tmp___0 ; [L319] int tmp___1 ; [L320] int tmp___2 ; [L323] splverifierCounter = 0 Loop: [L325] COND TRUE 1 [L327] COND TRUE splverifierCounter < 4 [L333] tmp = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp)) [L343] tmp___0 = __VERIFIER_nondet_int() [L345] COND FALSE !(\read(tmp___0)) [L353] tmp___2 = __VERIFIER_nondet_int() [L355] COND TRUE \read(tmp___2) [L370] CALL timeShift() [L391] COND FALSE !(\read(pumpRunning)) [L398] COND TRUE \read(systemActive) [L400] CALL processEnvironment() [L472] int tmp ; [L475] COND FALSE !(\read(pumpRunning)) [L490] CALL processEnvironment__wrappee__methaneQuery() [L446] int tmp ; [L449] COND FALSE !(\read(pumpRunning)) [L464] CALL processEnvironment__wrappee__highWaterSensor() [L420] int tmp ; [L423] COND TRUE ! pumpRunning [L425] CALL, EXPR isHighWaterLevel() [L586] int retValue_acc ; [L587] int tmp ; [L588] int tmp___0 ; [L592] CALL, EXPR isHighWaterSensorDry() [L291] int retValue_acc ; [L294] COND TRUE waterLevel < 2 [L295] retValue_acc = 1 [L296] return (retValue_acc); [L592] RET, EXPR isHighWaterSensorDry() [L592] tmp = isHighWaterSensorDry() [L594] COND TRUE \read(tmp) [L595] tmp___0 = 0 [L599] retValue_acc = tmp___0 [L600] return (retValue_acc); [L425] RET, EXPR isHighWaterLevel() [L425] tmp = isHighWaterLevel() [L427] COND FALSE !(\read(tmp)) [L433] FCALL processEnvironment__wrappee__base() [L464] RET processEnvironment__wrappee__highWaterSensor() [L490] RET processEnvironment__wrappee__methaneQuery() [L400] RET processEnvironment() [L406] CALL __utac_acc__Specification2_spec__2() [L177] int tmp ; [L178] int tmp___0 ; [L182] CALL, EXPR isMethaneLevelCritical() [L250] int retValue_acc ; [L253] retValue_acc = methaneLevelCritical [L254] return (retValue_acc); [L182] RET, EXPR isMethaneLevelCritical() [L182] tmp = isMethaneLevelCritical() [L184] COND FALSE !(\read(tmp)) [L200] methAndRunningLastTime = 0 [L406] RET __utac_acc__Specification2_spec__2() [L370] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:41,631 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)