./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product10.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product10.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 4dae96e0c4eed470a791b2d8d52884fccffefaebe65a821ad8af6206bc44af61 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:54,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:54,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:54,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:54,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:54,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:54,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:54,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:54,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:54,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:54,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:54,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:54,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:54,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:54,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:54,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:54,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:54,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:54,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:54,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:54,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:54,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:54,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:54,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:54,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:54,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:54,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:54,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:54,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:54,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:54,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:54,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:54,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:54,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:54,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:54,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:54,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:54,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:54,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:54,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:54,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:54,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:54,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:54,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:54,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:54,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:54,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:54,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:54,300 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:54,300 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:54,300 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:54,300 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:54,301 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:54,301 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:54,301 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:54,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:54,301 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:54,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:54,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:54,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:54,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:54,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:54,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:54,305 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:54,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dae96e0c4eed470a791b2d8d52884fccffefaebe65a821ad8af6206bc44af61 [2022-02-21 04:15:54,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:54,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:54,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:54,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:54,526 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:54,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product10.cil.c [2022-02-21 04:15:54,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8221b729e/6f71f7adde1646039c99f9de0c9baca2/FLAG6987a5efe [2022-02-21 04:15:54,965 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:54,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product10.cil.c [2022-02-21 04:15:54,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8221b729e/6f71f7adde1646039c99f9de0c9baca2/FLAG6987a5efe [2022-02-21 04:15:54,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8221b729e/6f71f7adde1646039c99f9de0c9baca2 [2022-02-21 04:15:54,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:54,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:54,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:54,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:54,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:54,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:54" (1/1) ... [2022-02-21 04:15:54,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d376ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:54, skipping insertion in model container [2022-02-21 04:15:54,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:54" (1/1) ... [2022-02-21 04:15:54,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:55,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:55,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product10.cil.c[1605,1618] [2022-02-21 04:15:55,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:55,247 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:55,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product10.cil.c[1605,1618] [2022-02-21 04:15:55,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:55,310 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:55,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55 WrapperNode [2022-02-21 04:15:55,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:55,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:55,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:55,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:55,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,374 INFO L137 Inliner]: procedures = 52, calls = 148, calls flagged for inlining = 45, calls inlined = 34, statements flattened = 297 [2022-02-21 04:15:55,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:55,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:55,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:55,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:55,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:55,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:55,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:55,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:55,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (1/1) ... [2022-02-21 04:15:55,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:55,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:55,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:55,535 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:55,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:55,779 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:55,785 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:55,785 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:55,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:55 BoogieIcfgContainer [2022-02-21 04:15:55,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:55,787 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:55,787 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:55,790 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:55,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:55,790 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:54" (1/3) ... [2022-02-21 04:15:55,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20b2d5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:55, skipping insertion in model container [2022-02-21 04:15:55,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:55,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:55" (2/3) ... [2022-02-21 04:15:55,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20b2d5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:55, skipping insertion in model container [2022-02-21 04:15:55,791 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:55,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:55" (3/3) ... [2022-02-21 04:15:55,792 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product10.cil.c [2022-02-21 04:15:55,820 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:55,821 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:55,821 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:55,821 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:55,821 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:55,821 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:55,821 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:55,821 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:55,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:55,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-02-21 04:15:55,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:55,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:55,859 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:55,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:55,860 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:55,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:55,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2022-02-21 04:15:55,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:55,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:55,869 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:55,869 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:55,872 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 59#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 81#L536true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 36#L529true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 58#L544true main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 33#L879true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 22#L855true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 5#L763true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 27#L562-2true [2022-02-21 04:15:55,873 INFO L793 eck$LassoCheckResult]: Loop: 27#L562-2true assume !false; 78#L563true assume test_~splverifierCounter~0#1 < 4; 23#L564true test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 56#L572true assume !(0 != test_~tmp~3#1); 29#L572-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 75#L582true assume !(0 != test_~tmp___0~0#1); 44#L582-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 26#L592true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 77#L753true assume { :end_inline_startSystem } true; 60#L600-2true assume { :begin_inline_timeShift } true; 7#L631true assume !(0 != ~pumpRunning~0); 30#L631-2true assume !(0 != ~systemActive~0); 64#L638-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 35#L108true __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; 31#L774true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 61#L774-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 80#L648true assume { :end_inline_timeShift } true; 27#L562-2true [2022-02-21 04:15:55,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:15:55,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:55,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022571358] [2022-02-21 04:15:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:55,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:55,994 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,031 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:56,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1368168009, now seen corresponding path program 1 times [2022-02-21 04:15:56,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:56,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002166292] [2022-02-21 04:15:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:56,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:56,113 INFO L290 TraceCheckUtils]: 0: Hoare triple {86#true} assume !false; {86#true} is VALID [2022-02-21 04:15:56,113 INFO L290 TraceCheckUtils]: 1: Hoare triple {86#true} assume test_~splverifierCounter~0#1 < 4; {86#true} is VALID [2022-02-21 04:15:56,113 INFO L290 TraceCheckUtils]: 2: Hoare triple {86#true} test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {86#true} is VALID [2022-02-21 04:15:56,114 INFO L290 TraceCheckUtils]: 3: Hoare triple {86#true} assume !(0 != test_~tmp~3#1); {86#true} is VALID [2022-02-21 04:15:56,114 INFO L290 TraceCheckUtils]: 4: Hoare triple {86#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {86#true} is VALID [2022-02-21 04:15:56,114 INFO L290 TraceCheckUtils]: 5: Hoare triple {86#true} assume !(0 != test_~tmp___0~0#1); {86#true} is VALID [2022-02-21 04:15:56,114 INFO L290 TraceCheckUtils]: 6: Hoare triple {86#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {86#true} is VALID [2022-02-21 04:15:56,115 INFO L290 TraceCheckUtils]: 7: Hoare triple {86#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:56,116 INFO L290 TraceCheckUtils]: 8: Hoare triple {88#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:56,116 INFO L290 TraceCheckUtils]: 9: Hoare triple {88#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:56,117 INFO L290 TraceCheckUtils]: 10: Hoare triple {88#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {88#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:56,118 INFO L290 TraceCheckUtils]: 11: Hoare triple {88#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {87#false} is VALID [2022-02-21 04:15:56,118 INFO L290 TraceCheckUtils]: 12: Hoare triple {87#false} assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {87#false} is VALID [2022-02-21 04:15:56,118 INFO L290 TraceCheckUtils]: 13: Hoare triple {87#false} __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; {87#false} is VALID [2022-02-21 04:15:56,118 INFO L290 TraceCheckUtils]: 14: Hoare triple {87#false} assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; {87#false} is VALID [2022-02-21 04:15:56,119 INFO L290 TraceCheckUtils]: 15: Hoare triple {87#false} assume { :end_inline___utac_acc__Specification2_spec__2 } true; {87#false} is VALID [2022-02-21 04:15:56,119 INFO L290 TraceCheckUtils]: 16: Hoare triple {87#false} assume { :end_inline_timeShift } true; {87#false} is VALID [2022-02-21 04:15:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:56,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:56,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002166292] [2022-02-21 04:15:56,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002166292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:56,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:56,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:56,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230855992] [2022-02-21 04:15:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:56,128 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:56,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:56,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:56,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:56,149 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:56,272 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2022-02-21 04:15:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:56,273 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 04:15:56,289 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 04:15:56,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 97 transitions. [2022-02-21 04:15:56,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-02-21 04:15:56,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 67 states and 86 transitions. [2022-02-21 04:15:56,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2022-02-21 04:15:56,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2022-02-21 04:15:56,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 86 transitions. [2022-02-21 04:15:56,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:56,301 INFO L681 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-02-21 04:15:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 86 transitions. [2022-02-21 04:15:56,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-02-21 04:15:56,321 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:56,324 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states and 86 transitions. Second operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:56,325 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states and 86 transitions. Second operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:56,327 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:56,331 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-02-21 04:15:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-02-21 04:15:56,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:56,332 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:56,332 INFO L74 IsIncluded]: Start isIncluded. First operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 67 states and 86 transitions. [2022-02-21 04:15:56,333 INFO L87 Difference]: Start difference. First operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 67 states and 86 transitions. [2022-02-21 04:15:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:56,335 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-02-21 04:15:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-02-21 04:15:56,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:56,336 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:56,336 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:56,336 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 66 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:15:56,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-02-21 04:15:56,339 INFO L704 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-02-21 04:15:56,339 INFO L587 BuchiCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-02-21 04:15:56,339 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:56,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states and 86 transitions. [2022-02-21 04:15:56,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2022-02-21 04:15:56,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:56,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:56,342 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:56,342 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:56,343 INFO L791 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 225#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 226#L536 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 208#L529 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~6#1;havoc valid_product_~retValue_acc~6#1;valid_product_~retValue_acc~6#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~6#1; 209#L544 main_#t~ret49#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 204#L879 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 188#L855 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 166#L763 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 167#L562-2 [2022-02-21 04:15:56,343 INFO L793 eck$LassoCheckResult]: Loop: 167#L562-2 assume !false; 198#L563 assume test_~splverifierCounter~0#1 < 4; 191#L564 test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 192#L572 assume !(0 != test_~tmp~3#1); 201#L572-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 202#L582 assume !(0 != test_~tmp___0~0#1); 216#L582-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 195#L592 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 196#L753 assume { :end_inline_startSystem } true; 221#L600-2 assume { :begin_inline_timeShift } true; 170#L631 assume !(0 != ~pumpRunning~0); 171#L631-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true; 199#L655 assume { :end_inline_processEnvironment } true; 220#L638-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret47#1, __utac_acc__Specification2_spec__2_#t~ret48#1, __utac_acc__Specification2_spec__2_~tmp~5#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~5#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 207#L108 __utac_acc__Specification2_spec__2_#t~ret47#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~5#1 := __utac_acc__Specification2_spec__2_#t~ret47#1;havoc __utac_acc__Specification2_spec__2_#t~ret47#1; 200#L774 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~5#1);~methAndRunningLastTime~0 := 0; 182#L774-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 227#L648 assume { :end_inline_timeShift } true; 167#L562-2 [2022-02-21 04:15:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:15:56,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:56,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262252879] [2022-02-21 04:15:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:56,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,367 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,414 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:56,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:56,418 INFO L85 PathProgramCache]: Analyzing trace with hash 91436236, now seen corresponding path program 1 times [2022-02-21 04:15:56,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:56,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786133593] [2022-02-21 04:15:56,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:56,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,444 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,449 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1247916171, now seen corresponding path program 1 times [2022-02-21 04:15:56,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:56,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898350506] [2022-02-21 04:15:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:56,480 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:59,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:59 BoogieIcfgContainer [2022-02-21 04:15:59,241 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:59,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:59,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:59,242 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:59,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:55" (3/4) ... [2022-02-21 04:15:59,244 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:59,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:59,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:59,274 INFO L158 Benchmark]: Toolchain (without parser) took 4285.12ms. Allocated memory was 86.0MB in the beginning and 134.2MB in the end (delta: 48.2MB). Free memory was 49.8MB in the beginning and 79.4MB in the end (delta: -29.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,274 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:59,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.68ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 52.0MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.66ms. Allocated memory is still 86.0MB. Free memory was 52.0MB in the beginning and 49.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,275 INFO L158 Benchmark]: Boogie Preprocessor took 42.36ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 47.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,276 INFO L158 Benchmark]: RCFGBuilder took 368.01ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 80.1MB in the end (delta: -32.8MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,276 INFO L158 Benchmark]: BuchiAutomizer took 3453.80ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 80.1MB in the beginning and 81.5MB in the end (delta: -1.4MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,276 INFO L158 Benchmark]: Witness Printer took 31.43ms. Allocated memory is still 134.2MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:59,278 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 86.0MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.68ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 52.0MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.66ms. Allocated memory is still 86.0MB. Free memory was 52.0MB in the beginning and 49.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.36ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 47.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.01ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 80.1MB in the end (delta: -32.8MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 3453.80ms. Allocated memory was 107.0MB in the beginning and 134.2MB in the end (delta: 27.3MB). Free memory was 80.1MB in the beginning and 81.5MB in the end (delta: -1.4MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Witness Printer took 31.43ms. Allocated memory is still 134.2MB. Free memory was 81.5MB in the beginning and 79.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 67 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 67 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 94 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 562]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca228a7=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@160e8e72=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7deb32c8=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp=0, retValue_acc=1, \result=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2183d4c5=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a11f0db=29, tmp___2=29, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, tmp=0, \result=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@319914f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@249707e6=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp___0=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 562]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L65] int waterLevel = 1; [L66] int methaneLevelCritical = 0; [L314] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L623] int pumpRunning = 0; [L624] int systemActive = 1; [L757] int methAndRunningLastTime ; [L796] int cleanupTimeShifts = 4; [L870] int retValue_acc ; [L871] int tmp ; [L875] FCALL select_helpers() [L876] FCALL select_features() [L877] CALL, EXPR valid_product() [L540] int retValue_acc ; [L543] retValue_acc = 1 [L544] return (retValue_acc); [L877] RET, EXPR valid_product() [L877] tmp = valid_product() [L879] COND TRUE \read(tmp) [L881] FCALL setup() [L882] CALL runTest() [L863] CALL __utac_acc__Specification2_spec__1() [L762] methAndRunningLastTime = 0 [L863] RET __utac_acc__Specification2_spec__1() [L864] CALL test() [L553] int splverifierCounter ; [L554] int tmp ; [L555] int tmp___0 ; [L556] int tmp___1 ; [L557] int tmp___2 ; [L560] splverifierCounter = 0 Loop: [L562] COND TRUE 1 [L564] COND TRUE splverifierCounter < 4 [L570] tmp = __VERIFIER_nondet_int() [L572] COND FALSE !(\read(tmp)) [L580] tmp___0 = __VERIFIER_nondet_int() [L582] COND FALSE !(\read(tmp___0)) [L590] tmp___2 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___2) [L594] CALL startSystem() [L752] systemActive = 1 [L594] RET startSystem() [L607] CALL timeShift() [L631] COND FALSE !(\read(pumpRunning)) [L638] COND TRUE \read(systemActive) [L640] FCALL processEnvironment() [L646] CALL __utac_acc__Specification2_spec__2() [L767] int tmp ; [L768] int tmp___0 ; [L772] CALL, EXPR isMethaneLevelCritical() [L104] int retValue_acc ; [L107] retValue_acc = methaneLevelCritical [L108] return (retValue_acc); [L772] RET, EXPR isMethaneLevelCritical() [L772] tmp = isMethaneLevelCritical() [L774] COND FALSE !(\read(tmp)) [L790] methAndRunningLastTime = 0 [L646] RET __utac_acc__Specification2_spec__2() [L607] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:59,319 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)