./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product18.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_spec1_product18.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 0d9ebbb30768a2034911923a47ec23b508893488073d6c966da0671a59e428a3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:07,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:07,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:07,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:07,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:07,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:07,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:07,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:07,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:07,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:08,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:08,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:08,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:08,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:08,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:08,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:08,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:08,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:08,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:08,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:08,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:08,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:08,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:08,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:08,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:08,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:08,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:08,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:08,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:08,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:08,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:08,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:08,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:08,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:08,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:08,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:08,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:08,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:08,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:08,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:08,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:08,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:08,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:08,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:08,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:08,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:08,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:08,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:08,072 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:08,072 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:08,073 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:08,073 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:08,074 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:08,074 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:08,074 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:08,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:08,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:08,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:08,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:08,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:08,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:08,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:08,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:08,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:08,076 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:08,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:08,076 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:08,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:08,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:08,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:08,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:08,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:08,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:08,079 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:08,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d9ebbb30768a2034911923a47ec23b508893488073d6c966da0671a59e428a3 [2022-02-21 04:15:08,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:08,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:08,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:08,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:08,380 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:08,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2022-02-21 04:15:08,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8ba4700/d39dcc2c4aa142198a7156233bcbbd39/FLAG461c1a845 [2022-02-21 04:15:08,919 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:08,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product18.cil.c [2022-02-21 04:15:08,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8ba4700/d39dcc2c4aa142198a7156233bcbbd39/FLAG461c1a845 [2022-02-21 04:15:09,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e8ba4700/d39dcc2c4aa142198a7156233bcbbd39 [2022-02-21 04:15:09,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:09,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:09,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:09,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:09,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:09,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce04309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09, skipping insertion in model container [2022-02-21 04:15:09,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:09,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:09,779 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_spec1_product18.cil.c[16435,16448] [2022-02-21 04:15:09,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:09,806 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:09,867 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_spec1_product18.cil.c[16435,16448] [2022-02-21 04:15:09,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:09,900 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:09,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09 WrapperNode [2022-02-21 04:15:09,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:09,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:09,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:09,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:09,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,980 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 380 [2022-02-21 04:15:09,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:09,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:09,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:09,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:09,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:09,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:10,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:10,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:10,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:10,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (1/1) ... [2022-02-21 04:15:10,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:10,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:10,093 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 04:15:10,132 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 04:15:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:10,238 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:10,239 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:10,642 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:10,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:10,649 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:10,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10 BoogieIcfgContainer [2022-02-21 04:15:10,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:10,652 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:10,657 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:10,662 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:10,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,663 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:09" (1/3) ... [2022-02-21 04:15:10,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9d00e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:10, skipping insertion in model container [2022-02-21 04:15:10,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:09" (2/3) ... [2022-02-21 04:15:10,664 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d9d00e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:10, skipping insertion in model container [2022-02-21 04:15:10,664 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:10,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10" (3/3) ... [2022-02-21 04:15:10,666 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2022-02-21 04:15:10,708 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:10,708 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:10,709 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:10,709 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:10,709 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:10,709 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:10,709 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:10,709 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:10,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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 04:15:10,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-02-21 04:15:10,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:10,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:10,800 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,800 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,801 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:10,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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 04:15:10,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2022-02-21 04:15:10,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:10,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:10,831 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,831 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:10,841 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~2#1, main_~tmp~1#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 17#L104true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 61#L97true 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; 43#L112true main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 84#L204true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 3#L180true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 83#L394-2true [2022-02-21 04:15:10,842 INFO L793 eck$LassoCheckResult]: Loop: 83#L394-2true assume !false; 72#L395true assume test_~splverifierCounter~0#1 < 4; 77#L396true test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 90#L404true assume !(0 != test_~tmp~4#1); 51#L404-2true test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 95#L414true assume !(0 != test_~tmp___0~2#1); 64#L414-2true test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 87#L424true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 75#L432true assume 0 != test_~tmp___1~0#1; 30#L432-2true assume { :begin_inline_timeShift } true; 67#L231true assume !(0 != ~pumpRunning~0); 6#L231-2true assume !(0 != ~systemActive~0); 9#L238-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 71#L870true __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 56#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 88#L61-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 103#L248true assume { :end_inline_timeShift } true; 83#L394-2true [2022-02-21 04:15:10,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:10,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:10,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909224356] [2022-02-21 04:15:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:10,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,025 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,091 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:11,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:11,095 INFO L85 PathProgramCache]: Analyzing trace with hash -86162590, now seen corresponding path program 1 times [2022-02-21 04:15:11,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:11,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719924763] [2022-02-21 04:15:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:11,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,128 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,134 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:11,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:11,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1017844194, now seen corresponding path program 1 times [2022-02-21 04:15:11,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:11,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393591219] [2022-02-21 04:15:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:11,319 INFO L290 TraceCheckUtils]: 0: Hoare triple {111#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {113#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,320 INFO L290 TraceCheckUtils]: 1: Hoare triple {113#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~2#1, main_~tmp~1#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {113#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,320 INFO L290 TraceCheckUtils]: 2: Hoare triple {113#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {113#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:11,321 INFO L290 TraceCheckUtils]: 3: Hoare triple {113#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {114#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:11,321 INFO L290 TraceCheckUtils]: 4: Hoare triple {114#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; {115#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:15:11,322 INFO L290 TraceCheckUtils]: 5: Hoare triple {115#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,323 INFO L290 TraceCheckUtils]: 6: Hoare triple {116#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,324 INFO L290 TraceCheckUtils]: 7: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !false; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,324 INFO L290 TraceCheckUtils]: 8: Hoare triple {116#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,325 INFO L290 TraceCheckUtils]: 9: Hoare triple {116#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,325 INFO L290 TraceCheckUtils]: 10: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,326 INFO L290 TraceCheckUtils]: 11: Hoare triple {116#(not (= 0 ~systemActive~0))} test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,327 INFO L290 TraceCheckUtils]: 12: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~2#1); {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,327 INFO L290 TraceCheckUtils]: 13: Hoare triple {116#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,328 INFO L290 TraceCheckUtils]: 14: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,328 INFO L290 TraceCheckUtils]: 15: Hoare triple {116#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,329 INFO L290 TraceCheckUtils]: 16: Hoare triple {116#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,329 INFO L290 TraceCheckUtils]: 17: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {116#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:11,331 INFO L290 TraceCheckUtils]: 18: Hoare triple {116#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {112#false} is VALID [2022-02-21 04:15:11,331 INFO L290 TraceCheckUtils]: 19: Hoare triple {112#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; {112#false} is VALID [2022-02-21 04:15:11,331 INFO L290 TraceCheckUtils]: 20: Hoare triple {112#false} __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; {112#false} is VALID [2022-02-21 04:15:11,332 INFO L290 TraceCheckUtils]: 21: Hoare triple {112#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); {112#false} is VALID [2022-02-21 04:15:11,332 INFO L290 TraceCheckUtils]: 22: Hoare triple {112#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {112#false} is VALID [2022-02-21 04:15:11,333 INFO L290 TraceCheckUtils]: 23: Hoare triple {112#false} assume { :end_inline_timeShift } true; {112#false} is VALID [2022-02-21 04:15:11,334 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 04:15:11,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:11,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393591219] [2022-02-21 04:15:11,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393591219] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:11,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:11,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:11,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667867217] [2022-02-21 04:15:11,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:11,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:11,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:11,540 INFO L87 Difference]: Start difference. First operand has 103 states, 102 states have (on average 1.3627450980392157) internal successors, (139), 102 states have internal predecessors, (139), 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 04:15:11,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,825 INFO L93 Difference]: Finished difference Result 100 states and 125 transitions. [2022-02-21 04:15:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:11,842 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 04:15:11,874 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 04:15:11,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 125 transitions. [2022-02-21 04:15:11,888 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2022-02-21 04:15:11,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 90 states and 115 transitions. [2022-02-21 04:15:11,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2022-02-21 04:15:11,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2022-02-21 04:15:11,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 115 transitions. [2022-02-21 04:15:11,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:11,900 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2022-02-21 04:15:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 115 transitions. [2022-02-21 04:15:11,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-02-21 04:15:11,927 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:11,928 INFO L82 GeneralOperation]: Start isEquivalent. First operand 90 states and 115 transitions. Second operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 04:15:11,930 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states and 115 transitions. Second operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 04:15:11,932 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 04:15:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,935 INFO L93 Difference]: Finished difference Result 90 states and 115 transitions. [2022-02-21 04:15:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2022-02-21 04:15:11,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:11,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:11,937 INFO L74 IsIncluded]: Start isIncluded. First operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 90 states and 115 transitions. [2022-02-21 04:15:11,938 INFO L87 Difference]: Start difference. First operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 90 states and 115 transitions. [2022-02-21 04:15:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:11,941 INFO L93 Difference]: Finished difference Result 90 states and 115 transitions. [2022-02-21 04:15:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2022-02-21 04:15:11,942 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:11,942 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:11,942 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:11,943 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.2777777777777777) internal successors, (115), 89 states have internal predecessors, (115), 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 04:15:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2022-02-21 04:15:11,947 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2022-02-21 04:15:11,947 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 115 transitions. [2022-02-21 04:15:11,947 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:11,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 115 transitions. [2022-02-21 04:15:11,948 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2022-02-21 04:15:11,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:11,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:11,949 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:11,949 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] [2022-02-21 04:15:11,949 INFO L791 eck$LassoCheckResult]: Stem: 305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret7#1, main_~retValue_acc~2#1, main_~tmp~1#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 272#L104 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 240#L97 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; 241#L112 main_#t~ret7#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 294#L204 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 221#L180 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet19#1, test_#t~nondet20#1, test_#t~nondet21#1, test_#t~nondet22#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 222#L394-2 [2022-02-21 04:15:11,950 INFO L793 eck$LassoCheckResult]: Loop: 222#L394-2 assume !false; 260#L395 assume test_~splverifierCounter~0#1 < 4; 261#L396 test_~tmp~4#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 276#L404 assume !(0 != test_~tmp~4#1); 303#L404-2 test_~tmp___0~2#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 308#L414 assume !(0 != test_~tmp___0~2#1); 239#L414-2 test_~tmp___2~0#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 246#L424 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 275#L432 assume 0 != test_~tmp___1~0#1; 235#L432-2 assume { :begin_inline_timeShift } true; 252#L231 assume !(0 != ~pumpRunning~0); 227#L231-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 228#L263 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 291#L255-1 assume { :end_inline_processEnvironment__wrappee__base } true; 267#L263-1 assume { :end_inline_processEnvironment } true; 244#L238-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret4#1, __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 245#L870 __utac_acc__Specification1_spec__1_#t~ret4#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret4#1;havoc __utac_acc__Specification1_spec__1_#t~ret4#1; 229#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 230#L61-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 297#L248 assume { :end_inline_timeShift } true; 222#L394-2 [2022-02-21 04:15:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:11,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:11,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083413203] [2022-02-21 04:15:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,965 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,976 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:11,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:11,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1840109465, now seen corresponding path program 1 times [2022-02-21 04:15:11,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:11,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462998031] [2022-02-21 04:15:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:11,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,983 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:11,988 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:11,989 INFO L85 PathProgramCache]: Analyzing trace with hash 806859819, now seen corresponding path program 1 times [2022-02-21 04:15:11,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:11,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509627156] [2022-02-21 04:15:11,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:11,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,003 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:12,017 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:14,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:14 BoogieIcfgContainer [2022-02-21 04:15:14,904 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:14,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:14,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:14,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:14,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:10" (3/4) ... [2022-02-21 04:15:14,907 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:14,979 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:14,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:14,981 INFO L158 Benchmark]: Toolchain (without parser) took 5561.00ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 51.8MB in the beginning and 60.1MB in the end (delta: -8.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,982 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:14,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.57ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 56.7MB in the end (delta: -5.1MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.86ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 53.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,992 INFO L158 Benchmark]: Boogie Preprocessor took 51.20ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,993 INFO L158 Benchmark]: RCFGBuilder took 618.67ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 54.1MB in the end (delta: -2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,993 INFO L158 Benchmark]: BuchiAutomizer took 4251.63ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 54.1MB in the beginning and 62.2MB in the end (delta: -8.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,994 INFO L158 Benchmark]: Witness Printer took 75.40ms. Allocated memory is still 119.5MB. Free memory was 62.2MB in the beginning and 60.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:14,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.57ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 56.7MB in the end (delta: -5.1MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.86ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 53.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.20ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.67ms. Allocated memory is still 94.4MB. Free memory was 51.4MB in the beginning and 54.1MB in the end (delta: -2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4251.63ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 54.1MB in the beginning and 62.2MB in the end (delta: -8.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 75.40ms. Allocated memory is still 119.5MB. Free memory was 62.2MB in the beginning and 60.1MB 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 362 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 362 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 120 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 394]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, retValue_acc=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@776d8dec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@349ea80a=0, retValue_acc=0, methaneLevelCritical=0, \result=0, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ce0e65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cf6fd2b=0, tmp___2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b701038=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10f5804c=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25fde310=0, \result=0, tmp=1, tmp=0, head=0, tmp___1=29, NULL=0, tmp=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21f856f6=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 394]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L117] int cleanupTimeShifts = 4; [L224] int pumpRunning = 0; [L225] int systemActive = 1; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L827] int waterLevel = 1; [L828] int methaneLevelCritical = 0; [L195] int retValue_acc ; [L196] int tmp ; [L200] FCALL select_helpers() [L201] FCALL select_features() [L202] CALL, EXPR valid_product() [L108] int retValue_acc ; [L111] retValue_acc = 1 [L112] return (retValue_acc); [L202] RET, EXPR valid_product() [L202] tmp = valid_product() [L204] COND TRUE \read(tmp) [L206] FCALL setup() [L207] CALL runTest() [L189] CALL test() [L385] int splverifierCounter ; [L386] int tmp ; [L387] int tmp___0 ; [L388] int tmp___1 ; [L389] int tmp___2 ; [L392] splverifierCounter = 0 Loop: [L394] COND TRUE 1 [L396] COND TRUE splverifierCounter < 4 [L402] tmp = __VERIFIER_nondet_int() [L404] COND FALSE !(\read(tmp)) [L412] tmp___0 = __VERIFIER_nondet_int() [L414] COND FALSE !(\read(tmp___0)) [L422] tmp___2 = __VERIFIER_nondet_int() [L424] COND FALSE !(\read(tmp___2)) [L430] tmp___1 = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp___1) [L439] CALL timeShift() [L231] COND FALSE !(\read(pumpRunning)) [L238] COND TRUE \read(systemActive) [L240] CALL processEnvironment() [L260] int tmp ; [L263] COND FALSE !(\read(pumpRunning)) [L278] FCALL processEnvironment__wrappee__base() [L240] RET processEnvironment() [L246] CALL __utac_acc__Specification1_spec__1() [L54] int tmp ; [L55] int tmp___0 ; [L59] CALL, EXPR isMethaneLevelCritical() [L866] int retValue_acc ; [L869] retValue_acc = methaneLevelCritical [L870] return (retValue_acc); [L59] RET, EXPR isMethaneLevelCritical() [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) [L246] RET __utac_acc__Specification1_spec__1() [L439] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:15,068 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)