./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_product02.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 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:24:07,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:24:07,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:24:07,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:24:07,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:24:07,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:24:07,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:24:07,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:24:07,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:24:07,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:24:07,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:24:07,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:24:07,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:24:07,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:24:07,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:24:07,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:24:07,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:24:07,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:24:07,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:24:07,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:24:07,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:24:07,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:24:07,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:24:07,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:24:07,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:24:07,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:24:07,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:24:07,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:24:07,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:24:07,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:24:07,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:24:07,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:24:07,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:24:07,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:24:07,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:24:07,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:24:07,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:24:07,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:24:07,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:24:07,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:24:07,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:24:07,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:24:07,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:24:07,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:24:07,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:24:07,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:24:07,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:24:07,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:24:07,956 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:24:07,956 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:24:07,957 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:24:07,957 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:24:07,957 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:24:07,957 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:24:07,958 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:24:07,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:24:07,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:24:07,958 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:24:07,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:24:07,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:24:07,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:24:07,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:24:07,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:24:07,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:24:07,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:24:07,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:24:07,960 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:24:07,960 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:24:07,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:24:07,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:24:07,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:24:07,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:24:07,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:24:07,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:24:07,962 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:24:07,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 653672bd839f3a147b3f28538328e3e5032963608595336a23f534aa316d712b [2021-12-22 20:24:08,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:24:08,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:24:08,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:24:08,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:24:08,187 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:24:08,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c [2021-12-22 20:24:08,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bfffe58/5d1d491f8ab34104b271b13395680aa7/FLAGc17f52924 [2021-12-22 20:24:08,636 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:24:08,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product02.cil.c [2021-12-22 20:24:08,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bfffe58/5d1d491f8ab34104b271b13395680aa7/FLAGc17f52924 [2021-12-22 20:24:08,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bfffe58/5d1d491f8ab34104b271b13395680aa7 [2021-12-22 20:24:08,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:24:08,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:24:08,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:08,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:24:08,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:24:08,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:08,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c87521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08, skipping insertion in model container [2021-12-22 20:24:08,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:08,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:24:08,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:24:08,884 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_product02.cil.c[17174,17187] [2021-12-22 20:24:08,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:08,906 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:24:08,946 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_product02.cil.c[17174,17187] [2021-12-22 20:24:08,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:08,957 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:24:08,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08 WrapperNode [2021-12-22 20:24:08,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:08,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:08,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:24:08,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:24:08,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:08,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:08,998 INFO L137 Inliner]: procedures = 51, calls = 146, calls flagged for inlining = 43, calls inlined = 34, statements flattened = 297 [2021-12-22 20:24:08,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:08,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:24:08,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:24:08,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:24:09,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:24:09,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:24:09,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:24:09,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:24:09,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (1/1) ... [2021-12-22 20:24:09,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:24:09,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:24:09,072 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) [2021-12-22 20:24:09,074 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 [2021-12-22 20:24:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:24:09,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:24:09,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:24:09,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:24:09,153 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:24:09,154 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:24:09,336 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:24:09,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:24:09,342 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:24:09,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:09 BoogieIcfgContainer [2021-12-22 20:24:09,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:24:09,344 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:24:09,344 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:24:09,346 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:24:09,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:09,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:24:08" (1/3) ... [2021-12-22 20:24:09,359 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9c98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:09, skipping insertion in model container [2021-12-22 20:24:09,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:09,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:08" (2/3) ... [2021-12-22 20:24:09,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e9c98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:09, skipping insertion in model container [2021-12-22 20:24:09,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:09,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:09" (3/3) ... [2021-12-22 20:24:09,361 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product02.cil.c [2021-12-22 20:24:09,404 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:24:09,405 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:24:09,405 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:24:09,405 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:24:09,405 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:24:09,405 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:24:09,405 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:24:09,405 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:24:09,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 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) [2021-12-22 20:24:09,431 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-12-22 20:24:09,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:09,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:09,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,436 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:24:09,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 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) [2021-12-22 20:24:09,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-12-22 20:24:09,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:09,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:09,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,444 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,447 INFO L791 eck$LassoCheckResult]: Stem: 63#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 51#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 77#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#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; 25#L83true main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 46#L667true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 57#L642true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 40#L182true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 28#L809-2true [2021-12-22 20:24:09,449 INFO L793 eck$LassoCheckResult]: Loop: 28#L809-2true assume !false; 4#L810true assume test_~splverifierCounter~0#1 < 4; 9#L811true test_~tmp~5#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 59#L819true assume !(0 != test_~tmp~5#1); 44#L819-2true test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 16#L829true assume !(0 != test_~tmp___0~1#1); 31#L829-2true test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 34#L839true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6#L795true assume { :end_inline_startSystem } true; 80#L847-2true assume { :begin_inline_timeShift } true; 45#L691true assume !(0 != ~pumpRunning~0); 42#L691-2true assume !(0 != ~systemActive~0); 30#L698-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#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; 78#L137true __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 71#L193true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 37#L193-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 14#L708true assume { :end_inline_timeShift } true; 28#L809-2true [2021-12-22 20:24:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-22 20:24:09,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:09,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467949834] [2021-12-22 20:24:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:09,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,587 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:09,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:09,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1368168009, now seen corresponding path program 1 times [2021-12-22 20:24:09,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:09,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111161301] [2021-12-22 20:24:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:09,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:09,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:09,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:09,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111161301] [2021-12-22 20:24:09,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111161301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:09,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:09,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 20:24:09,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670054280] [2021-12-22 20:24:09,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:09,729 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-22 20:24:09,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:09,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 20:24:09,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 20:24:09,758 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-22 20:24:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:09,796 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2021-12-22 20:24:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 20:24:09,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 97 transitions. [2021-12-22 20:24:09,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-12-22 20:24:09,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 67 states and 86 transitions. [2021-12-22 20:24:09,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2021-12-22 20:24:09,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2021-12-22 20:24:09,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 86 transitions. [2021-12-22 20:24:09,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:09,808 INFO L681 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2021-12-22 20:24:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 86 transitions. [2021-12-22 20:24:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-12-22 20:24:09,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 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) [2021-12-22 20:24:09,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2021-12-22 20:24:09,825 INFO L704 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2021-12-22 20:24:09,825 INFO L587 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2021-12-22 20:24:09,826 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:24:09,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 86 transitions. [2021-12-22 20:24:09,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-12-22 20:24:09,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:09,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:09,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,828 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:09,828 INFO L791 eck$LassoCheckResult]: Stem: 229#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(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);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(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 222#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret35#1, main_~retValue_acc~7#1, main_~tmp~4#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 223#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 232#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; 196#L83 main_#t~ret35#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret35#1;havoc main_#t~ret35#1; 197#L667 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 219#L642 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 211#L182 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 180#L809-2 [2021-12-22 20:24:09,828 INFO L793 eck$LassoCheckResult]: Loop: 180#L809-2 assume !false; 166#L810 assume test_~splverifierCounter~0#1 < 4; 167#L811 test_~tmp~5#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 176#L819 assume !(0 != test_~tmp~5#1); 215#L819-2 test_~tmp___0~1#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 183#L829 assume !(0 != test_~tmp___0~1#1); 185#L829-2 test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 201#L839 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 173#L795 assume { :end_inline_startSystem } true; 174#L847-2 assume { :begin_inline_timeShift } true; 216#L691 assume !(0 != ~pumpRunning~0); 210#L691-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 186#L715 assume { :end_inline_processEnvironment } true; 187#L698-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~0#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~0#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; 200#L137 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~0#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 231#L193 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0#1);~methAndRunningLastTime~0 := 0; 172#L193-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 179#L708 assume { :end_inline_timeShift } true; 180#L809-2 [2021-12-22 20:24:09,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:09,829 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-22 20:24:09,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:09,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431833681] [2021-12-22 20:24:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:09,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,839 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:09,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:09,851 INFO L85 PathProgramCache]: Analyzing trace with hash 91436236, now seen corresponding path program 1 times [2021-12-22 20:24:09,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:09,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441625403] [2021-12-22 20:24:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:09,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,856 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,864 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:09,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:09,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1247916171, now seen corresponding path program 1 times [2021-12-22 20:24:09,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:09,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542776893] [2021-12-22 20:24:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:09,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,881 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:09,894 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:12,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:24:12 BoogieIcfgContainer [2021-12-22 20:24:12,842 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:24:12,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:24:12,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:24:12,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:24:12,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:09" (3/4) ... [2021-12-22 20:24:12,845 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:24:12,885 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:24:12,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:24:12,886 INFO L158 Benchmark]: Toolchain (without parser) took 4221.73ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 63.1MB in the beginning and 69.2MB in the end (delta: -6.1MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,886 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:12,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.78ms. Allocated memory is still 94.4MB. Free memory was 62.7MB in the beginning and 65.8MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.32ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,888 INFO L158 Benchmark]: Boogie Preprocessor took 35.38ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 61.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:12,888 INFO L158 Benchmark]: RCFGBuilder took 308.56ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 45.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,889 INFO L158 Benchmark]: BuchiAutomizer took 3498.06ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 45.9MB in the beginning and 71.2MB in the end (delta: -25.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,889 INFO L158 Benchmark]: Witness Printer took 43.18ms. Allocated memory is still 123.7MB. Free memory was 71.2MB in the beginning and 69.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:12,891 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 77.6MB. Free memory was 49.4MB in the beginning and 49.3MB in the end (delta: 25.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.78ms. Allocated memory is still 94.4MB. Free memory was 62.7MB in the beginning and 65.8MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.32ms. Allocated memory is still 94.4MB. Free memory was 65.8MB in the beginning and 63.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.38ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 61.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.56ms. Allocated memory is still 94.4MB. Free memory was 61.6MB in the beginning and 45.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3498.06ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 45.9MB in the beginning and 71.2MB in the end (delta: -25.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * Witness Printer took 43.18ms. Allocated memory is still 123.7MB. Free memory was 71.2MB in the beginning and 69.2MB in the end (delta: 2.0MB). 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 3 locations. The remainder module has 67 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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 67 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 94 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 809]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, \result=0, retValue_acc=1, \result=1, retValue_acc=0, tmp=0, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35144f47=0, methAndRunningLastTime=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ecb3568=0, cleanupTimeShifts=4, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4471adf3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3929619a=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb36464=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69095dc6=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69bda860=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 809]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L176] int methAndRunningLastTime ; [L384] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L581] int cleanupTimeShifts = 4; [L684] int pumpRunning = 0; [L685] int systemActive = 1; [L658] int retValue_acc ; [L659] int tmp ; [L663] FCALL select_helpers() [L664] FCALL select_features() [L665] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L665] RET, EXPR valid_product() [L665] tmp = valid_product() [L667] COND TRUE \read(tmp) [L669] FCALL setup() [L670] CALL runTest() [L651] CALL __utac_acc__Specification2_spec__1() [L181] methAndRunningLastTime = 0 [L651] RET __utac_acc__Specification2_spec__1() [L652] CALL test() [L800] int splverifierCounter ; [L801] int tmp ; [L802] int tmp___0 ; [L803] int tmp___1 ; [L804] int tmp___2 ; [L807] splverifierCounter = 0 Loop: [L809] COND TRUE 1 [L811] COND TRUE splverifierCounter < 4 [L817] tmp = __VERIFIER_nondet_int() [L819] COND FALSE !(\read(tmp)) [L827] tmp___0 = __VERIFIER_nondet_int() [L829] COND FALSE !(\read(tmp___0)) [L837] tmp___2 = __VERIFIER_nondet_int() [L839] COND TRUE \read(tmp___2) [L841] CALL startSystem() [L794] systemActive = 1 [L841] RET startSystem() [L854] CALL timeShift() [L691] COND FALSE !(\read(pumpRunning)) [L698] COND TRUE \read(systemActive) [L700] FCALL processEnvironment() [L706] CALL __utac_acc__Specification2_spec__2() [L186] int tmp ; [L187] int tmp___0 ; [L191] CALL, EXPR isMethaneLevelCritical() [L133] int retValue_acc ; [L136] retValue_acc = methaneLevelCritical [L137] return (retValue_acc); [L191] RET, EXPR isMethaneLevelCritical() [L191] tmp = isMethaneLevelCritical() [L193] COND FALSE !(\read(tmp)) [L209] methAndRunningLastTime = 0 [L706] RET __utac_acc__Specification2_spec__2() [L854] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:24:12,943 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)