./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_spec3_product16.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 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:45,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:45,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:45,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:45,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:45,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:45,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:45,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:45,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:45,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:45,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:45,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:45,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:45,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:45,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:45,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:45,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:45,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:45,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:45,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:45,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:45,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:45,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:45,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:45,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:45,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:45,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:45,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:45,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:45,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:45,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:45,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:45,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:45,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:45,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:45,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:45,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:45,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:45,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:45,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:45,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:45,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:45,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:45,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:45,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:45,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:45,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:45,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:45,969 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:45,969 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:45,969 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:45,969 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:45,970 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:45,970 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:45,970 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:45,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:45,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:45,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:45,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:45,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:45,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:45,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:45,974 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:45,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fdaba9a943be1a84417ec0186b85075ad2a6a54eeb9563391984670e62b2cee [2022-02-21 04:16:46,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:46,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:46,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:46,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:46,202 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:46,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2022-02-21 04:16:46,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9eb9ef43/38764fc9ade04fe09c4b0c69d90576ec/FLAG26002faa7 [2022-02-21 04:16:46,626 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:46,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2022-02-21 04:16:46,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9eb9ef43/38764fc9ade04fe09c4b0c69d90576ec/FLAG26002faa7 [2022-02-21 04:16:47,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9eb9ef43/38764fc9ade04fe09c4b0c69d90576ec [2022-02-21 04:16:47,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:47,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:47,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:47,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:47,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:47,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439d5472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:47,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:47,170 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_spec3_product16.cil.c[1605,1618] [2022-02-21 04:16:47,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:47,273 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:47,281 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_spec3_product16.cil.c[1605,1618] [2022-02-21 04:16:47,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:47,342 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:47,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47 WrapperNode [2022-02-21 04:16:47,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:47,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:47,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:47,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:47,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,391 INFO L137 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 51, calls inlined = 53, statements flattened = 402 [2022-02-21 04:16:47,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:47,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:47,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:47,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:47,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:47,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:47,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:47,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:47,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (1/1) ... [2022-02-21 04:16:47,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:47,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:47,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:47,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:47,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:47,536 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:47,537 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:47,882 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:47,889 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:47,890 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:47,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47 BoogieIcfgContainer [2022-02-21 04:16:47,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:47,893 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:47,894 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:47,896 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:47,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:47" (1/3) ... [2022-02-21 04:16:47,898 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cbf7310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,898 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:47" (2/3) ... [2022-02-21 04:16:47,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cbf7310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:47, skipping insertion in model container [2022-02-21 04:16:47,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:47,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/3) ... [2022-02-21 04:16:47,900 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2022-02-21 04:16:47,931 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:47,931 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:47,931 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:47,931 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:47,932 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:47,932 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:47,932 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:47,932 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:47,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:47,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:47,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:47,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:47,972 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,972 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,973 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:47,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:47,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2022-02-21 04:16:47,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:47,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:47,984 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:47,988 INFO L791 eck$LassoCheckResult]: Stem: 98#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 31#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; 44#L802true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 8#L795true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 7#L810true 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; 76#L149true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 42#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 17#L541-2true [2022-02-21 04:16:47,988 INFO L793 eck$LassoCheckResult]: Loop: 17#L541-2true assume !false; 9#L542true assume test_~splverifierCounter~0#1 < 4; 41#L543true test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 25#L551true assume !(0 != test_~tmp~4#1); 107#L551-2true test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 58#L561true assume !(0 != test_~tmp___0~0#1); 30#L561-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 100#L571true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 24#L776true assume { :end_inline_startSystem } true; 36#L579-2true assume { :begin_inline_timeShift } true; 29#L614true assume !(0 != ~pumpRunning~0); 32#L614-2true assume !(0 != ~systemActive~0); 79#L621-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 109#L859-1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 99#L905true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 89#L911-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 62#L631true assume { :end_inline_timeShift } true; 17#L541-2true [2022-02-21 04:16:47,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:48,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643965761] [2022-02-21 04:16:48,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,166 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash 134232851, now seen corresponding path program 1 times [2022-02-21 04:16:48,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530072401] [2022-02-21 04:16:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:48,251 INFO L290 TraceCheckUtils]: 0: Hoare triple {113#true} assume !false; {113#true} is VALID [2022-02-21 04:16:48,251 INFO L290 TraceCheckUtils]: 1: Hoare triple {113#true} assume test_~splverifierCounter~0#1 < 4; {113#true} is VALID [2022-02-21 04:16:48,252 INFO L290 TraceCheckUtils]: 2: Hoare triple {113#true} test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {113#true} is VALID [2022-02-21 04:16:48,252 INFO L290 TraceCheckUtils]: 3: Hoare triple {113#true} assume !(0 != test_~tmp~4#1); {113#true} is VALID [2022-02-21 04:16:48,252 INFO L290 TraceCheckUtils]: 4: Hoare triple {113#true} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {113#true} is VALID [2022-02-21 04:16:48,252 INFO L290 TraceCheckUtils]: 5: Hoare triple {113#true} assume !(0 != test_~tmp___0~0#1); {113#true} is VALID [2022-02-21 04:16:48,253 INFO L290 TraceCheckUtils]: 6: Hoare triple {113#true} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {113#true} is VALID [2022-02-21 04:16:48,254 INFO L290 TraceCheckUtils]: 7: Hoare triple {113#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,254 INFO L290 TraceCheckUtils]: 8: Hoare triple {115#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,255 INFO L290 TraceCheckUtils]: 9: Hoare triple {115#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,255 INFO L290 TraceCheckUtils]: 10: Hoare triple {115#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {115#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:48,256 INFO L290 TraceCheckUtils]: 11: Hoare triple {115#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {114#false} is VALID [2022-02-21 04:16:48,256 INFO L290 TraceCheckUtils]: 12: Hoare triple {114#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {114#false} is VALID [2022-02-21 04:16:48,256 INFO L290 TraceCheckUtils]: 13: Hoare triple {114#false} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {114#false} is VALID [2022-02-21 04:16:48,256 INFO L290 TraceCheckUtils]: 14: Hoare triple {114#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {114#false} is VALID [2022-02-21 04:16:48,256 INFO L290 TraceCheckUtils]: 15: Hoare triple {114#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {114#false} is VALID [2022-02-21 04:16:48,257 INFO L290 TraceCheckUtils]: 16: Hoare triple {114#false} assume { :end_inline_timeShift } true; {114#false} is VALID [2022-02-21 04:16:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:48,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:48,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530072401] [2022-02-21 04:16:48,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530072401] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:48,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:48,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:16:48,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13312980] [2022-02-21 04:16:48,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:48,263 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:16:48,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:48,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:16:48,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:16:48,288 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2022-02-21 04:16:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,489 INFO L93 Difference]: Finished difference Result 199 states and 255 transitions. [2022-02-21 04:16:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:16:48,490 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 04:16:48,503 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:48,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 199 states and 255 transitions. [2022-02-21 04:16:48,519 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2022-02-21 04:16:48,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 199 states to 179 states and 234 transitions. [2022-02-21 04:16:48,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2022-02-21 04:16:48,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2022-02-21 04:16:48,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 234 transitions. [2022-02-21 04:16:48,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:48,528 INFO L681 BuchiCegarLoop]: Abstraction has 179 states and 234 transitions. [2022-02-21 04:16:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 234 transitions. [2022-02-21 04:16:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 176. [2022-02-21 04:16:48,549 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:48,550 INFO L82 GeneralOperation]: Start isEquivalent. First operand 179 states and 234 transitions. Second operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:48,551 INFO L74 IsIncluded]: Start isIncluded. First operand 179 states and 234 transitions. Second operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:48,552 INFO L87 Difference]: Start difference. First operand 179 states and 234 transitions. Second operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,557 INFO L93 Difference]: Finished difference Result 179 states and 234 transitions. [2022-02-21 04:16:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2022-02-21 04:16:48,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:48,559 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:48,559 INFO L74 IsIncluded]: Start isIncluded. First operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 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 179 states and 234 transitions. [2022-02-21 04:16:48,560 INFO L87 Difference]: Start difference. First operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 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 179 states and 234 transitions. [2022-02-21 04:16:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:48,564 INFO L93 Difference]: Finished difference Result 179 states and 234 transitions. [2022-02-21 04:16:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2022-02-21 04:16:48,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:48,565 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:48,565 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:48,565 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:48,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 176 states have (on average 1.3068181818181819) internal successors, (230), 175 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 230 transitions. [2022-02-21 04:16:48,570 INFO L704 BuchiCegarLoop]: Abstraction has 176 states and 230 transitions. [2022-02-21 04:16:48,570 INFO L587 BuchiCegarLoop]: Abstraction has 176 states and 230 transitions. [2022-02-21 04:16:48,570 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:48,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 176 states and 230 transitions. [2022-02-21 04:16:48,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 125 [2022-02-21 04:16:48,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:48,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:48,572 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:48,573 INFO L791 eck$LassoCheckResult]: Stem: 413#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 400#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; 401#L802 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 332#L795 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 327#L810 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; 328#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 373#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 410#L541-2 [2022-02-21 04:16:48,573 INFO L793 eck$LassoCheckResult]: Loop: 410#L541-2 assume !false; 335#L542 assume test_~splverifierCounter~0#1 < 4; 336#L543 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 382#L551 assume !(0 != test_~tmp~4#1); 384#L551-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 324#L561 assume !(0 != test_~tmp___0~0#1); 326#L561-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 399#L571 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 345#L579 assume !(0 != test_~tmp___1~0#1); 346#L579-2 assume { :begin_inline_timeShift } true; 397#L614 assume !(0 != ~pumpRunning~0); 398#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 402#L646 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 408#L638-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 358#L646-1 assume { :end_inline_processEnvironment } true; 375#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 387#L859-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 424#L905 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 480#L911-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 479#L631 assume { :end_inline_timeShift } true; 410#L541-2 [2022-02-21 04:16:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:48,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375847738] [2022-02-21 04:16:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,586 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,598 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1267798985, now seen corresponding path program 1 times [2022-02-21 04:16:48,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515986692] [2022-02-21 04:16:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:48,616 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1379170299, now seen corresponding path program 1 times [2022-02-21 04:16:48,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:48,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132054658] [2022-02-21 04:16:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:48,684 INFO L290 TraceCheckUtils]: 0: Hoare triple {856#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,685 INFO L290 TraceCheckUtils]: 1: Hoare triple {858#(= ~methaneLevelCritical~0 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; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,686 INFO L290 TraceCheckUtils]: 2: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,686 INFO L290 TraceCheckUtils]: 3: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,687 INFO L290 TraceCheckUtils]: 4: Hoare triple {858#(= ~methaneLevelCritical~0 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; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,688 INFO L290 TraceCheckUtils]: 5: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,688 INFO L290 TraceCheckUtils]: 6: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,689 INFO L290 TraceCheckUtils]: 7: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !false; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,689 INFO L290 TraceCheckUtils]: 8: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,690 INFO L290 TraceCheckUtils]: 9: Hoare triple {858#(= ~methaneLevelCritical~0 0)} test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,690 INFO L290 TraceCheckUtils]: 10: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~4#1); {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,690 INFO L290 TraceCheckUtils]: 11: Hoare triple {858#(= ~methaneLevelCritical~0 0)} test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,691 INFO L290 TraceCheckUtils]: 12: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~0#1); {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,691 INFO L290 TraceCheckUtils]: 13: Hoare triple {858#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,692 INFO L290 TraceCheckUtils]: 14: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,692 INFO L290 TraceCheckUtils]: 15: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___1~0#1); {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,692 INFO L290 TraceCheckUtils]: 16: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,693 INFO L290 TraceCheckUtils]: 17: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,693 INFO L290 TraceCheckUtils]: 18: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,693 INFO L290 TraceCheckUtils]: 19: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,694 INFO L290 TraceCheckUtils]: 20: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,695 INFO L290 TraceCheckUtils]: 21: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {858#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:48,695 INFO L290 TraceCheckUtils]: 22: Hoare triple {858#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; {859#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:48,696 INFO L290 TraceCheckUtils]: 23: Hoare triple {859#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {860#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} is VALID [2022-02-21 04:16:48,696 INFO L290 TraceCheckUtils]: 24: Hoare triple {860#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~7#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; {857#false} is VALID [2022-02-21 04:16:48,697 INFO L290 TraceCheckUtils]: 25: Hoare triple {857#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {857#false} is VALID [2022-02-21 04:16:48,697 INFO L290 TraceCheckUtils]: 26: Hoare triple {857#false} assume { :end_inline_timeShift } true; {857#false} is VALID [2022-02-21 04:16:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:48,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:48,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132054658] [2022-02-21 04:16:48,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132054658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:48,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:48,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:48,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435701719] [2022-02-21 04:16:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:48,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:48,805 INFO L87 Difference]: Start difference. First operand 176 states and 230 transitions. cyclomatic complexity: 57 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,341 INFO L93 Difference]: Finished difference Result 608 states and 796 transitions. [2022-02-21 04:16:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:49,341 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,360 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:49,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 608 states and 796 transitions. [2022-02-21 04:16:49,376 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 456 [2022-02-21 04:16:49,391 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 608 states to 608 states and 796 transitions. [2022-02-21 04:16:49,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 608 [2022-02-21 04:16:49,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 608 [2022-02-21 04:16:49,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 608 states and 796 transitions. [2022-02-21 04:16:49,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:49,407 INFO L681 BuchiCegarLoop]: Abstraction has 608 states and 796 transitions. [2022-02-21 04:16:49,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states and 796 transitions. [2022-02-21 04:16:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 345. [2022-02-21 04:16:49,423 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:49,424 INFO L82 GeneralOperation]: Start isEquivalent. First operand 608 states and 796 transitions. Second operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,424 INFO L74 IsIncluded]: Start isIncluded. First operand 608 states and 796 transitions. Second operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,425 INFO L87 Difference]: Start difference. First operand 608 states and 796 transitions. Second operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,440 INFO L93 Difference]: Finished difference Result 608 states and 796 transitions. [2022-02-21 04:16:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 796 transitions. [2022-02-21 04:16:49,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,442 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,443 INFO L74 IsIncluded]: Start isIncluded. First operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 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 608 states and 796 transitions. [2022-02-21 04:16:49,443 INFO L87 Difference]: Start difference. First operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 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 608 states and 796 transitions. [2022-02-21 04:16:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:49,464 INFO L93 Difference]: Finished difference Result 608 states and 796 transitions. [2022-02-21 04:16:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 796 transitions. [2022-02-21 04:16:49,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:49,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:49,465 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:49,465 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 345 states have (on average 1.289855072463768) internal successors, (445), 344 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:49,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 445 transitions. [2022-02-21 04:16:49,471 INFO L704 BuchiCegarLoop]: Abstraction has 345 states and 445 transitions. [2022-02-21 04:16:49,471 INFO L587 BuchiCegarLoop]: Abstraction has 345 states and 445 transitions. [2022-02-21 04:16:49,471 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:49,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 345 states and 445 transitions. [2022-02-21 04:16:49,473 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 250 [2022-02-21 04:16:49,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:49,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:49,473 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:49,474 INFO L791 eck$LassoCheckResult]: Stem: 1586#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1568#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; 1569#L802 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1495#L795 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~7#1;havoc valid_product_~retValue_acc~7#1;valid_product_~retValue_acc~7#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~7#1; 1488#L810 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; 1489#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1533#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1494#L541-2 [2022-02-21 04:16:49,479 INFO L793 eck$LassoCheckResult]: Loop: 1494#L541-2 assume !false; 1496#L542 assume test_~splverifierCounter~0#1 < 4; 1497#L543 test_~tmp~4#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1544#L551 assume !(0 != test_~tmp~4#1); 1546#L551-2 test_~tmp___0~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1485#L561 assume !(0 != test_~tmp___0~0#1); 1487#L561-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1567#L571 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1506#L579 assume !(0 != test_~tmp___1~0#1); 1507#L579-2 assume { :begin_inline_timeShift } true; 1565#L614 assume !(0 != ~pumpRunning~0); 1566#L614-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1523#L646 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 1525#L638-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1519#L646-1 assume { :end_inline_processEnvironment } true; 1536#L621-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~1#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;havoc isMethaneLevelCritical_~retValue_acc~8#1;isMethaneLevelCritical_~retValue_acc~8#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~8#1; 1600#L859-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1587#L905 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~9#1;havoc getWaterLevel_~retValue_acc~9#1;getWaterLevel_~retValue_acc~9#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~9#1; 1491#L891 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~1#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 1492#L911 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1#1); 1532#L911-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1493#L631 assume { :end_inline_timeShift } true; 1494#L541-2 [2022-02-21 04:16:49,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:49,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482329016] [2022-02-21 04:16:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,506 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,532 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1417138986, now seen corresponding path program 1 times [2022-02-21 04:16:49,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972105348] [2022-02-21 04:16:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,552 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1760985618, now seen corresponding path program 1 times [2022-02-21 04:16:49,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:49,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170302783] [2022-02-21 04:16:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:49,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,572 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:49,583 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:51 BoogieIcfgContainer [2022-02-21 04:16:51,890 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:51,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:51,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:51,891 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:51,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:47" (3/4) ... [2022-02-21 04:16:51,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:51,924 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:51,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:51,926 INFO L158 Benchmark]: Toolchain (without parser) took 4917.51ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 54.5MB in the beginning and 90.8MB in the end (delta: -36.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,926 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:51,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.89ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 54.0MB in the end (delta: 282.9kB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.13ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 50.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,927 INFO L158 Benchmark]: Boogie Preprocessor took 18.66ms. Allocated memory is still 90.2MB. Free memory was 50.8MB in the beginning and 48.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,927 INFO L158 Benchmark]: RCFGBuilder took 481.86ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 78.2MB in the end (delta: -29.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,927 INFO L158 Benchmark]: BuchiAutomizer took 3997.10ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 77.5MB in the beginning and 94.0MB in the end (delta: -16.4MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,927 INFO L158 Benchmark]: Witness Printer took 33.82ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 90.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:51,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.89ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 54.0MB in the end (delta: 282.9kB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.13ms. Allocated memory is still 90.2MB. Free memory was 54.0MB in the beginning and 50.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.66ms. Allocated memory is still 90.2MB. Free memory was 50.8MB in the beginning and 48.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.86ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 78.2MB in the end (delta: -29.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3997.10ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 77.5MB in the beginning and 94.0MB in the end (delta: -16.4MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Witness Printer took 33.82ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 90.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 345 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 266 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 345 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 551 mSDsluCounter, 944 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 641 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 303 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 541]: 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@3c6d432c=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f3a4bcf=0, NULL=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76a4130c=0, tmp___0=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, tmp___0=1, \result=0, retValue_acc=1, \result=1, tmp=0, tmp___2=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f2abd4f=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72cd3413=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4af23f46=0, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@296c66da=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c1f07ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@573b51a6=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 541]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L332] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L816] int waterLevel = 1; [L817] int methaneLevelCritical = 0; [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L806] int retValue_acc ; [L809] retValue_acc = 1 [L810] return (retValue_acc); [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L532] int splverifierCounter ; [L533] int tmp ; [L534] int tmp___0 ; [L535] int tmp___1 ; [L536] int tmp___2 ; [L539] splverifierCounter = 0 Loop: [L541] COND TRUE 1 [L543] COND TRUE splverifierCounter < 4 [L549] tmp = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp)) [L559] tmp___0 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___0)) [L569] tmp___2 = __VERIFIER_nondet_int() [L571] COND FALSE !(\read(tmp___2)) [L577] tmp___1 = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp___1)) [L588] CALL timeShift() [L614] COND FALSE !(\read(pumpRunning)) [L621] COND TRUE \read(systemActive) [L623] CALL processEnvironment() [L643] int tmp ; [L646] COND FALSE !(\read(pumpRunning)) [L661] FCALL processEnvironment__wrappee__methaneQuery() [L623] RET processEnvironment() [L629] CALL __utac_acc__Specification3_spec__1() [L897] int tmp ; [L898] int tmp___0 ; [L899] int tmp___1 ; [L903] CALL, EXPR isMethaneLevelCritical() [L855] int retValue_acc ; [L858] retValue_acc = methaneLevelCritical [L859] return (retValue_acc); [L903] RET, EXPR isMethaneLevelCritical() [L903] tmp = isMethaneLevelCritical() [L905] COND FALSE !(\read(tmp)) [L909] CALL, EXPR getWaterLevel() [L887] int retValue_acc ; [L890] retValue_acc = waterLevel [L891] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp___0 = getWaterLevel() [L911] COND FALSE !(tmp___0 == 2) [L629] RET __utac_acc__Specification3_spec__1() [L588] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:51,970 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)