./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product05.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 b58343dfed6fef80fe78f9243bbae3e5c0d1ca5dda43ba2e6616ff59c3704ff6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:52,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:52,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:52,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:52,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:52,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:52,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:52,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:52,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:52,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:52,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:52,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:52,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:52,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:52,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:52,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:52,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:52,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:52,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:52,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:52,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:52,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:52,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:52,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:52,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:52,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:52,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:52,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:52,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:52,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:52,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:52,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:52,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:52,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:52,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:52,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:52,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:52,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:52,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:52,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:52,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:52,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:52,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:52,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:52,129 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:52,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:52,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:52,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:52,130 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:52,130 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:52,131 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:52,131 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:52,132 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:52,132 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:52,132 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:52,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:52,132 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:52,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:52,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:52,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:52,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:52,134 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:52,134 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:52,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:52,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:52,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:52,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:52,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:52,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:52,136 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b58343dfed6fef80fe78f9243bbae3e5c0d1ca5dda43ba2e6616ff59c3704ff6 [2022-02-21 04:15:52,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:52,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:52,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:52,394 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:52,395 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:52,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2022-02-21 04:15:52,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8f6101/9e7ee22495f74189baba1f9f1bb49bd3/FLAG0965c252f [2022-02-21 04:15:52,860 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:52,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product05.cil.c [2022-02-21 04:15:52,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8f6101/9e7ee22495f74189baba1f9f1bb49bd3/FLAG0965c252f [2022-02-21 04:15:52,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e8f6101/9e7ee22495f74189baba1f9f1bb49bd3 [2022-02-21 04:15:52,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:52,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:52,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:52,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:52,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:52,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:52" (1/1) ... [2022-02-21 04:15:52,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7970f9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:52, skipping insertion in model container [2022-02-21 04:15:52,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:52" (1/1) ... [2022-02-21 04:15:52,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:52,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:53,138 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_product05.cil.c[7760,7773] [2022-02-21 04:15:53,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:53,219 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:53,283 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_product05.cil.c[7760,7773] [2022-02-21 04:15:53,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:53,329 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:53,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53 WrapperNode [2022-02-21 04:15:53,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:53,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:53,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:53,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:53,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,391 INFO L137 Inliner]: procedures = 51, calls = 149, calls flagged for inlining = 46, calls inlined = 48, statements flattened = 375 [2022-02-21 04:15:53,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:53,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:53,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:53,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:53,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:53,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:53,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:53,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:53,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (1/1) ... [2022-02-21 04:15:53,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:53,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:53,486 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 04:15:53,488 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 04:15:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:53,582 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:53,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:53,855 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:53,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:53,861 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:53,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:53 BoogieIcfgContainer [2022-02-21 04:15:53,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:53,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:53,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:53,867 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:53,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:53,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:52" (1/3) ... [2022-02-21 04:15:53,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375c01ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:53, skipping insertion in model container [2022-02-21 04:15:53,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:53,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:53" (2/3) ... [2022-02-21 04:15:53,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@375c01ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:53, skipping insertion in model container [2022-02-21 04:15:53,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:53,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:53" (3/3) ... [2022-02-21 04:15:53,871 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2022-02-21 04:15:53,929 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:53,929 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:53,930 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:53,930 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:53,930 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:53,930 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:53,930 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:53,930 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:53,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 100 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 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 04:15:54,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-02-21 04:15:54,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:54,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:54,024 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:54,024 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:54,024 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:54,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 100 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 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 04:15:54,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 62 [2022-02-21 04:15:54,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:54,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:54,049 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:54,049 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:54,054 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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 18#L422true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 89#L415true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 15#L430true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 81#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 90#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 11#L165true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 86#L208-2true [2022-02-21 04:15:54,064 INFO L793 eck$LassoCheckResult]: Loop: 86#L208-2true assume !false; 87#L209true assume test_~splverifierCounter~0#1 < 4; 9#L210true test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 39#L218true assume !(0 != test_~tmp~2#1); 13#L218-2true test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 70#L228true assume !(0 != test_~tmp___0~1#1); 64#L228-2true test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 27#L238true assume 0 != test_~tmp___2~0#1; 32#L244-2true assume { :begin_inline_timeShift } true; 73#L274true assume !(0 != ~pumpRunning~0); 98#L274-2true assume !(0 != ~systemActive~0); 76#L281-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 55#L479-1true __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 42#L176true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 23#L176-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 63#L291true assume { :end_inline_timeShift } true; 86#L208-2true [2022-02-21 04:15:54,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:15:54,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:54,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689592436] [2022-02-21 04:15:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:54,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:54,213 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:54,306 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:54,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:54,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1631236618, now seen corresponding path program 1 times [2022-02-21 04:15:54,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:54,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493624042] [2022-02-21 04:15:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:54,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:54,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:54,351 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:54,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:54,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1468949235, now seen corresponding path program 1 times [2022-02-21 04:15:54,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:54,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105478428] [2022-02-21 04:15:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:54,529 INFO L290 TraceCheckUtils]: 0: Hoare triple {108#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; {110#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:54,530 INFO L290 TraceCheckUtils]: 1: Hoare triple {110#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {110#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:54,531 INFO L290 TraceCheckUtils]: 2: Hoare triple {110#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {110#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:54,531 INFO L290 TraceCheckUtils]: 3: Hoare triple {110#(= 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~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; {111#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:54,532 INFO L290 TraceCheckUtils]: 4: Hoare triple {111#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {112#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} is VALID [2022-02-21 04:15:54,533 INFO L290 TraceCheckUtils]: 5: Hoare triple {112#(= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,533 INFO L290 TraceCheckUtils]: 6: Hoare triple {113#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,534 INFO L290 TraceCheckUtils]: 7: Hoare triple {113#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,534 INFO L290 TraceCheckUtils]: 8: Hoare triple {113#(not (= 0 ~systemActive~0))} assume !false; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,535 INFO L290 TraceCheckUtils]: 9: Hoare triple {113#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,536 INFO L290 TraceCheckUtils]: 10: Hoare triple {113#(not (= 0 ~systemActive~0))} test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,536 INFO L290 TraceCheckUtils]: 11: Hoare triple {113#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~2#1); {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,537 INFO L290 TraceCheckUtils]: 12: Hoare triple {113#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,538 INFO L290 TraceCheckUtils]: 13: Hoare triple {113#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,538 INFO L290 TraceCheckUtils]: 14: Hoare triple {113#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,539 INFO L290 TraceCheckUtils]: 15: Hoare triple {113#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,539 INFO L290 TraceCheckUtils]: 16: Hoare triple {113#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,540 INFO L290 TraceCheckUtils]: 17: Hoare triple {113#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {113#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:54,541 INFO L290 TraceCheckUtils]: 18: Hoare triple {113#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {109#false} is VALID [2022-02-21 04:15:54,541 INFO L290 TraceCheckUtils]: 19: Hoare triple {109#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {109#false} is VALID [2022-02-21 04:15:54,541 INFO L290 TraceCheckUtils]: 20: Hoare triple {109#false} __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; {109#false} is VALID [2022-02-21 04:15:54,542 INFO L290 TraceCheckUtils]: 21: Hoare triple {109#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; {109#false} is VALID [2022-02-21 04:15:54,543 INFO L290 TraceCheckUtils]: 22: Hoare triple {109#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {109#false} is VALID [2022-02-21 04:15:54,543 INFO L290 TraceCheckUtils]: 23: Hoare triple {109#false} assume { :end_inline_timeShift } true; {109#false} is VALID [2022-02-21 04:15:54,545 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 04:15:54,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:54,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105478428] [2022-02-21 04:15:54,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105478428] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:54,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:54,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:54,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796909382] [2022-02-21 04:15:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:54,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:54,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:54,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:54,725 INFO L87 Difference]: Start difference. First operand has 100 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 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 04:15:55,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:55,046 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2022-02-21 04:15:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:15:55,047 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 04:15:55,071 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 04:15:55,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 122 transitions. [2022-02-21 04:15:55,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2022-02-21 04:15:55,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 87 states and 112 transitions. [2022-02-21 04:15:55,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 87 [2022-02-21 04:15:55,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 87 [2022-02-21 04:15:55,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 112 transitions. [2022-02-21 04:15:55,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:55,106 INFO L681 BuchiCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-02-21 04:15:55,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 112 transitions. [2022-02-21 04:15:55,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-02-21 04:15:55,159 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:55,162 INFO L82 GeneralOperation]: Start isEquivalent. First operand 87 states and 112 transitions. Second operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 04:15:55,165 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states and 112 transitions. Second operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 04:15:55,200 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 04:15:55,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:55,204 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2022-02-21 04:15:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2022-02-21 04:15:55,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:55,205 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:55,206 INFO L74 IsIncluded]: Start isIncluded. First operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 87 states and 112 transitions. [2022-02-21 04:15:55,206 INFO L87 Difference]: Start difference. First operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 87 states and 112 transitions. [2022-02-21 04:15:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:55,209 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2022-02-21 04:15:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2022-02-21 04:15:55,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:55,209 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:55,209 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:55,210 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 86 states have internal predecessors, (112), 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 04:15:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2022-02-21 04:15:55,217 INFO L704 BuchiCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-02-21 04:15:55,217 INFO L587 BuchiCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-02-21 04:15:55,217 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:55,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 112 transitions. [2022-02-21 04:15:55,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2022-02-21 04:15:55,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:55,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:55,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:55,222 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] [2022-02-21 04:15:55,222 INFO L791 eck$LassoCheckResult]: Stem: 296#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(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 289#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 253#L422 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 254#L415 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 251#L430 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 252#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 281#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 240#L165 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 239#L208-2 [2022-02-21 04:15:55,223 INFO L793 eck$LassoCheckResult]: Loop: 239#L208-2 assume !false; 288#L209 assume test_~splverifierCounter~0#1 < 4; 232#L210 test_~tmp~2#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 233#L218 assume !(0 != test_~tmp~2#1); 245#L218-2 test_~tmp___0~1#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 246#L228 assume !(0 != test_~tmp___0~1#1); 243#L228-2 test_~tmp___2~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 244#L238 assume 0 != test_~tmp___2~0#1; 231#L244-2 assume { :begin_inline_timeShift } true; 265#L274 assume !(0 != ~pumpRunning~0); 266#L274-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 300#L306 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 295#L298-1 assume { :end_inline_processEnvironment__wrappee__base } true; 277#L306-1 assume { :end_inline_processEnvironment } true; 274#L281-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret5#1, __utac_acc__Specification2_spec__2_#t~ret6#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 275#L479-1 __utac_acc__Specification2_spec__2_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret5#1;havoc __utac_acc__Specification2_spec__2_#t~ret5#1; 293#L176 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 220#L176-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 238#L291 assume { :end_inline_timeShift } true; 239#L208-2 [2022-02-21 04:15:55,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:55,223 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:15:55,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:55,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933086642] [2022-02-21 04:15:55,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:55,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,255 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,280 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash -395509013, now seen corresponding path program 1 times [2022-02-21 04:15:55,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:55,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488742715] [2022-02-21 04:15:55,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:55,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,301 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,305 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:55,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:55,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1034239330, now seen corresponding path program 1 times [2022-02-21 04:15:55,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:55,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302357373] [2022-02-21 04:15:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:55,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,330 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,364 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:58,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:58 BoogieIcfgContainer [2022-02-21 04:15:58,251 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:58,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:58,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:58,252 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:58,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:53" (3/4) ... [2022-02-21 04:15:58,255 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:58,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:58,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:58,293 INFO L158 Benchmark]: Toolchain (without parser) took 5410.06ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 58.6MB in the beginning and 105.0MB in the end (delta: -46.4MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,294 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 58.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:58,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 63.0MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.63ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 59.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,295 INFO L158 Benchmark]: Boogie Preprocessor took 59.17ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,295 INFO L158 Benchmark]: RCFGBuilder took 411.14ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 38.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,296 INFO L158 Benchmark]: BuchiAutomizer took 4387.39ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 38.4MB in the beginning and 108.2MB in the end (delta: -69.8MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,296 INFO L158 Benchmark]: Witness Printer took 39.98ms. Allocated memory is still 146.8MB. Free memory was 108.2MB in the beginning and 105.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:58,298 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 0.21ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 58.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 98.6MB. Free memory was 58.4MB in the beginning and 63.0MB in the end (delta: -4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.63ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 59.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.17ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.14ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 38.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 4387.39ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 38.4MB in the beginning and 108.2MB in the end (delta: -69.8MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * Witness Printer took 39.98ms. Allocated memory is still 146.8MB. Free memory was 108.2MB in the beginning and 105.0MB in the end (delta: 3.1MB). 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 87 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s 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 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 87 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 117 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: 208]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@101cd011=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cfbd70=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7962764f=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dabbd53=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ce29413=0, methaneLevelCritical=0, retValue_acc=0, \result=0, \result=1, retValue_acc=1, tmp=0, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2586b13e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ec2a876=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@444544b9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 208]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int methAndRunningLastTime ; [L267] int pumpRunning = 0; [L268] int systemActive = 1; [L436] int waterLevel = 1; [L437] int methaneLevelCritical = 0; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification2_spec__1() [L164] methAndRunningLastTime = 0 [L123] RET __utac_acc__Specification2_spec__1() [L124] CALL test() [L199] int splverifierCounter ; [L200] int tmp ; [L201] int tmp___0 ; [L202] int tmp___1 ; [L203] int tmp___2 ; [L206] splverifierCounter = 0 Loop: [L208] COND TRUE 1 [L210] COND TRUE splverifierCounter < 4 [L216] tmp = __VERIFIER_nondet_int() [L218] COND FALSE !(\read(tmp)) [L226] tmp___0 = __VERIFIER_nondet_int() [L228] COND FALSE !(\read(tmp___0)) [L236] tmp___2 = __VERIFIER_nondet_int() [L238] COND TRUE \read(tmp___2) [L251] CALL timeShift() [L274] COND FALSE !(\read(pumpRunning)) [L281] COND TRUE \read(systemActive) [L283] CALL processEnvironment() [L303] int tmp ; [L306] COND FALSE !(\read(pumpRunning)) [L321] FCALL processEnvironment__wrappee__base() [L283] RET processEnvironment() [L289] CALL __utac_acc__Specification2_spec__2() [L169] int tmp ; [L170] int tmp___0 ; [L174] CALL, EXPR isMethaneLevelCritical() [L475] int retValue_acc ; [L478] retValue_acc = methaneLevelCritical [L479] return (retValue_acc); [L174] RET, EXPR isMethaneLevelCritical() [L174] tmp = isMethaneLevelCritical() [L176] COND FALSE !(\read(tmp)) [L192] methAndRunningLastTime = 0 [L289] RET __utac_acc__Specification2_spec__2() [L251] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:58,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)