./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product57.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 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:57:58,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:57:58,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:57:58,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:57:58,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:57:58,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:57:58,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:57:58,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:57:58,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:57:58,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:57:58,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:57:58,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:57:58,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:57:58,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:57:58,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:57:58,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:57:58,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:57:58,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:57:58,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:57:58,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:57:58,111 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:57:58,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:57:58,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:57:58,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:57:58,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:57:58,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:57:58,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:57:58,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:57:58,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:57:58,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:57:58,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:57:58,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:57:58,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:57:58,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:57:58,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:57:58,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:57:58,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:57:58,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:57:58,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:57:58,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:57:58,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:57:58,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:57:58,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:57:58,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:57:58,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:57:58,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:57:58,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:57:58,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:57:58,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:57:58,156 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:57:58,156 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:57:58,157 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:57:58,157 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:57:58,157 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:57:58,158 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:57:58,158 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:57:58,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:57:58,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:57:58,158 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:57:58,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:57:58,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:57:58,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:57:58,160 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:57:58,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:57:58,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:57:58,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:57:58,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:57:58,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:57:58,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:57:58,162 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:57:58,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 [2022-07-14 15:57:58,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:57:58,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:57:58,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:57:58,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:57:58,388 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:57:58,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2022-07-14 15:57:58,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f162da8/453834d5d2b44a4f85b246de2d6952f5/FLAG04762f61b [2022-07-14 15:57:58,846 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:57:58,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2022-07-14 15:57:58,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f162da8/453834d5d2b44a4f85b246de2d6952f5/FLAG04762f61b [2022-07-14 15:57:58,884 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2f162da8/453834d5d2b44a4f85b246de2d6952f5 [2022-07-14 15:57:58,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:57:58,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:57:58,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:58,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:57:58,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:57:58,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:58" (1/1) ... [2022-07-14 15:57:58,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdcece9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:58, skipping insertion in model container [2022-07-14 15:57:58,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:57:58" (1/1) ... [2022-07-14 15:57:58,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:57:58,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:57:59,204 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_product57.cil.c[19040,19053] [2022-07-14 15:57:59,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:59,217 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:57:59,272 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_product57.cil.c[19040,19053] [2022-07-14 15:57:59,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:57:59,284 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:57:59,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59 WrapperNode [2022-07-14 15:57:59,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:57:59,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:59,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:57:59,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:57:59,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,345 INFO L137 Inliner]: procedures = 57, calls = 157, calls flagged for inlining = 54, calls inlined = 96, statements flattened = 741 [2022-07-14 15:57:59,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:57:59,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:57:59,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:57:59,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:57:59,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:57:59,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:57:59,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:57:59,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:57:59,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (1/1) ... [2022-07-14 15:57:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:57:59,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:57:59,414 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) [2022-07-14 15:57:59,426 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 [2022-07-14 15:57:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:57:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:57:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:57:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:57:59,537 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:57:59,538 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:57:59,942 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:57:59,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:57:59,948 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:57:59,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:59 BoogieIcfgContainer [2022-07-14 15:57:59,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:57:59,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:57:59,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:57:59,956 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:57:59,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:59,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:57:58" (1/3) ... [2022-07-14 15:57:59,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@530f41f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:59, skipping insertion in model container [2022-07-14 15:57:59,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:59,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:57:59" (2/3) ... [2022-07-14 15:57:59,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@530f41f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:57:59, skipping insertion in model container [2022-07-14 15:57:59,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:57:59,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:59" (3/3) ... [2022-07-14 15:57:59,959 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2022-07-14 15:58:00,010 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:58:00,010 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:58:00,010 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:58:00,011 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:58:00,011 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:58:00,011 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:58:00,011 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:58:00,011 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:58:00,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3703703703703705) internal successors, (259), 189 states have internal predecessors, (259), 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) [2022-07-14 15:58:00,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-07-14 15:58:00,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:00,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:00,038 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,038 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,038 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:58:00,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3703703703703705) internal successors, (259), 189 states have internal predecessors, (259), 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) [2022-07-14 15:58:00,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2022-07-14 15:58:00,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:00,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:00,045 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,045 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,048 INFO L752 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 63#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~6#1, main_~tmp~0#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 93#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 182#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 41#L83true main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 131#L286true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 102#L260true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 18#L308true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 51#L568-2true [2022-07-14 15:58:00,049 INFO L754 eck$LassoCheckResult]: Loop: 51#L568-2true assume !false; 53#L569true assume test_~splverifierCounter~0#1 < 4; 62#L570true test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 73#L578true assume !(0 != test_~tmp~7#1); 176#L578-2true test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 142#L588true assume !(0 != test_~tmp___0~3#1); 162#L588-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 169#L598true assume 0 != test_~tmp___2~0#1; 97#L604-2true assume { :begin_inline_timeShift } true; 156#L350true assume !(0 != ~pumpRunning~0); 164#L350-2true assume !(0 != ~systemActive~0); 155#L357-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_#t~ret12#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~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 31#L139-2true __utac_acc__Specification2_spec__2_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret11#1;havoc __utac_acc__Specification2_spec__2_#t~ret11#1; 190#L319true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 157#L319-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 24#L367true assume { :end_inline_timeShift } true; 51#L568-2true [2022-07-14 15:58:00,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,053 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-07-14 15:58:00,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801345589] [2022-07-14 15:58:00,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,165 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 265031466, now seen corresponding path program 1 times [2022-07-14 15:58:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762727882] [2022-07-14 15:58:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,225 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash 102744083, now seen corresponding path program 1 times [2022-07-14 15:58:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564736155] [2022-07-14 15:58:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:00,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:00,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564736155] [2022-07-14 15:58:00,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564736155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:00,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:00,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 15:58:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020938573] [2022-07-14 15:58:00,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:00,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 15:58:00,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 15:58:00,486 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.3703703703703705) internal successors, (259), 189 states have internal predecessors, (259), 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) [2022-07-14 15:58:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:00,557 INFO L93 Difference]: Finished difference Result 187 states and 245 transitions. [2022-07-14 15:58:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 15:58:00,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 245 transitions. [2022-07-14 15:58:00,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2022-07-14 15:58:00,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 177 states and 235 transitions. [2022-07-14 15:58:00,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2022-07-14 15:58:00,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2022-07-14 15:58:00,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 235 transitions. [2022-07-14 15:58:00,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:00,579 INFO L369 hiAutomatonCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-07-14 15:58:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 235 transitions. [2022-07-14 15:58:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-07-14 15:58:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 1.3276836158192091) internal successors, (235), 176 states have internal predecessors, (235), 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) [2022-07-14 15:58:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2022-07-14 15:58:00,601 INFO L392 hiAutomatonCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-07-14 15:58:00,601 INFO L374 stractBuchiCegarLoop]: Abstraction has 177 states and 235 transitions. [2022-07-14 15:58:00,601 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:58:00,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 235 transitions. [2022-07-14 15:58:00,603 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 118 [2022-07-14 15:58:00,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:00,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:00,604 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,604 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,604 INFO L752 eck$LassoCheckResult]: Stem: 570#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 488#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~6#1, main_~tmp~0#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 489#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 528#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 463#L83 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 464#L286 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 534#L260 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 423#L308 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 424#L568-2 [2022-07-14 15:58:00,604 INFO L754 eck$LassoCheckResult]: Loop: 424#L568-2 assume !false; 475#L569 assume test_~splverifierCounter~0#1 < 4; 476#L570 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 487#L578 assume !(0 != test_~tmp~7#1); 491#L578-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 558#L588 assume !(0 != test_~tmp___0~3#1); 559#L588-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 568#L598 assume 0 != test_~tmp___2~0#1; 511#L604-2 assume { :begin_inline_timeShift } true; 531#L350 assume !(0 != ~pumpRunning~0); 502#L350-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 567#L408 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 433#L382-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 435#L374-3 assume { :end_inline_processEnvironment__wrappee__base } true; 447#L382-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 468#L408-1 assume { :end_inline_processEnvironment } true; 557#L357-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_#t~ret12#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~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 444#L139-2 __utac_acc__Specification2_spec__2_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret11#1;havoc __utac_acc__Specification2_spec__2_#t~ret11#1; 445#L319 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 406#L319-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 432#L367 assume { :end_inline_timeShift } true; 424#L568-2 [2022-07-14 15:58:00,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,605 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-07-14 15:58:00,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305961364] [2022-07-14 15:58:00,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,621 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash -402659817, now seen corresponding path program 1 times [2022-07-14 15:58:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341761256] [2022-07-14 15:58:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:58:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:58:00,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:58:00,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341761256] [2022-07-14 15:58:00,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341761256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:58:00,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:58:00,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:58:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221148212] [2022-07-14 15:58:00,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:58:00,658 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-14 15:58:00,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:58:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:58:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:58:00,659 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:58:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:58:00,720 INFO L93 Difference]: Finished difference Result 241 states and 309 transitions. [2022-07-14 15:58:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:58:00,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 309 transitions. [2022-07-14 15:58:00,723 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-07-14 15:58:00,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 309 transitions. [2022-07-14 15:58:00,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2022-07-14 15:58:00,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2022-07-14 15:58:00,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 309 transitions. [2022-07-14 15:58:00,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:58:00,726 INFO L369 hiAutomatonCegarLoop]: Abstraction has 241 states and 309 transitions. [2022-07-14 15:58:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 309 transitions. [2022-07-14 15:58:00,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-07-14 15:58:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.2821576763485478) internal successors, (309), 240 states have internal predecessors, (309), 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) [2022-07-14 15:58:00,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 309 transitions. [2022-07-14 15:58:00,735 INFO L392 hiAutomatonCegarLoop]: Abstraction has 241 states and 309 transitions. [2022-07-14 15:58:00,735 INFO L374 stractBuchiCegarLoop]: Abstraction has 241 states and 309 transitions. [2022-07-14 15:58:00,735 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-14 15:58:00,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 309 transitions. [2022-07-14 15:58:00,737 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 166 [2022-07-14 15:58:00,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:58:00,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:58:00,738 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,738 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:58:00,738 INFO L752 eck$LassoCheckResult]: Stem: 1000#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 912#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~6#1, main_~tmp~0#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 913#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 952#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 886#L83 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 887#L286 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 960#L260 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 847#L308 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 848#L568-2 [2022-07-14 15:58:00,738 INFO L754 eck$LassoCheckResult]: Loop: 848#L568-2 assume !false; 897#L569 assume test_~splverifierCounter~0#1 < 4; 899#L570 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 911#L578 assume !(0 != test_~tmp~7#1); 915#L578-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 985#L588 assume !(0 != test_~tmp___0~3#1); 986#L588-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 998#L598 assume 0 != test_~tmp___2~0#1; 932#L604-2 assume { :begin_inline_timeShift } true; 954#L350 assume !(0 != ~pumpRunning~0); 996#L350-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 997#L408 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 857#L382-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 858#L179-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 970#L184-1 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 980#L528-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 981#L528-5 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 819#L534-1 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 820#L386-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 869#L374-2 assume { :end_inline_processEnvironment__wrappee__base } true; 870#L382-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 892#L408-1 assume { :end_inline_processEnvironment } true; 984#L357-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_#t~ret12#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~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 867#L139-2 __utac_acc__Specification2_spec__2_#t~ret11#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret11#1;havoc __utac_acc__Specification2_spec__2_#t~ret11#1; 868#L319 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 830#L319-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 856#L367 assume { :end_inline_timeShift } true; 848#L568-2 [2022-07-14 15:58:00,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-07-14 15:58:00,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611139421] [2022-07-14 15:58:00,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,751 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:00,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,764 INFO L85 PathProgramCache]: Analyzing trace with hash -114357681, now seen corresponding path program 1 times [2022-07-14 15:58:00,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231445554] [2022-07-14 15:58:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:00,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:58:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash 56417734, now seen corresponding path program 1 times [2022-07-14 15:58:00,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:58:00,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007056483] [2022-07-14 15:58:00,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:58:00,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:58:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,806 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:58:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:58:00,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:58:03,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:58:03 BoogieIcfgContainer [2022-07-14 15:58:03,615 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:58:03,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:58:03,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:58:03,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:58:03,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:57:59" (3/4) ... [2022-07-14 15:58:03,618 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:58:03,656 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:58:03,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:58:03,657 INFO L158 Benchmark]: Toolchain (without parser) took 4769.46ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 71.2MB in the beginning and 71.2MB in the end (delta: -6.0kB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,657 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:58:03,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.82ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 70.8MB in the end (delta: 214.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.45ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 67.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,658 INFO L158 Benchmark]: Boogie Preprocessor took 40.83ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,658 INFO L158 Benchmark]: RCFGBuilder took 561.75ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 64.5MB in the beginning and 106.7MB in the end (delta: -42.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,659 INFO L158 Benchmark]: BuchiAutomizer took 3665.33ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 106.7MB in the beginning and 73.3MB in the end (delta: 33.3MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,659 INFO L158 Benchmark]: Witness Printer took 40.84ms. Allocated memory is still 169.9MB. Free memory was 73.3MB in the beginning and 71.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:58:03,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.82ms. Allocated memory is still 104.9MB. Free memory was 71.0MB in the beginning and 70.8MB in the end (delta: 214.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.45ms. Allocated memory is still 104.9MB. Free memory was 70.8MB in the beginning and 67.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.83ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 64.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 561.75ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 64.5MB in the beginning and 106.7MB in the end (delta: -42.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3665.33ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 106.7MB in the beginning and 73.3MB in the end (delta: 33.3MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Witness Printer took 40.84ms. Allocated memory is still 169.9MB. Free memory was 73.3MB in the beginning and 71.2MB 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 241 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 893 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 893 mSDsluCounter, 571 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 460 mSDtfsCounter, 38 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 568]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d4a5d00=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24168b5f=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ecf662a=0, methaneLevelCritical=0, \result=0, retValue_acc=1, retValue_acc=1, \result=1, \result=1, retValue_acc=0, retValue_acc=0, tmp=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b577eb2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e13b664=0, head=0, tmp___1=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c4a97de=0, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@553f7e21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29272979=0, tmp___0=0, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4729947f=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@437f6348=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 568]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L199] int cleanupTimeShifts = 4; [L302] int methAndRunningLastTime ; [L343] int pumpRunning = 0; [L344] int systemActive = 1; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L277] int retValue_acc ; [L278] int tmp ; [L282] FCALL select_helpers() [L283] FCALL select_features() [L284] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L284] RET, EXPR valid_product() [L284] tmp = valid_product() [L286] COND TRUE \read(tmp) [L288] FCALL setup() [L289] CALL runTest() [L270] CALL __utac_acc__Specification2_spec__1() [L307] methAndRunningLastTime = 0 [L270] RET __utac_acc__Specification2_spec__1() [L271] CALL test() [L559] int splverifierCounter ; [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L563] int tmp___2 ; [L566] splverifierCounter = 0 Loop: [L568] COND TRUE 1 [L570] COND TRUE splverifierCounter < 4 [L576] tmp = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp)) [L586] tmp___0 = __VERIFIER_nondet_int() [L588] COND FALSE !(\read(tmp___0)) [L596] tmp___2 = __VERIFIER_nondet_int() [L598] COND TRUE \read(tmp___2) [L611] CALL timeShift() [L350] COND FALSE !(\read(pumpRunning)) [L357] COND TRUE \read(systemActive) [L359] CALL processEnvironment() [L405] int tmp ; [L408] COND FALSE !(\read(pumpRunning)) [L423] CALL processEnvironment__wrappee__highWaterSensor() [L379] int tmp ; [L382] COND TRUE ! pumpRunning [L384] CALL, EXPR isHighWaterLevel() [L520] int retValue_acc ; [L521] int tmp ; [L522] int tmp___0 ; [L526] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L526] RET, EXPR isHighWaterSensorDry() [L526] tmp = isHighWaterSensorDry() [L528] COND TRUE \read(tmp) [L529] tmp___0 = 0 [L533] retValue_acc = tmp___0 [L534] return (retValue_acc); [L384] RET, EXPR isHighWaterLevel() [L384] tmp = isHighWaterLevel() [L386] COND FALSE !(\read(tmp)) [L392] FCALL processEnvironment__wrappee__base() [L423] RET processEnvironment__wrappee__highWaterSensor() [L359] RET processEnvironment() [L365] CALL __utac_acc__Specification2_spec__2() [L312] int tmp ; [L313] int tmp___0 ; [L317] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L317] RET, EXPR isMethaneLevelCritical() [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L335] methAndRunningLastTime = 0 [L365] RET __utac_acc__Specification2_spec__2() [L611] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-14 15:58:03,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)