./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.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 a799124555890ca53ef8c243a58e7f790fa6b6f5 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......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:26:43,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:26:43,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:26:43,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:26:43,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:26:43,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:26:43,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:26:43,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:26:43,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:26:43,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:26:43,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:26:43,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:26:43,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:26:43,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:26:43,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:26:43,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:26:43,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:26:43,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:26:43,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:26:43,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:26:43,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:26:43,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:26:43,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:26:43,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:26:43,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:26:43,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:26:43,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:26:43,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:26:43,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:26:43,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:26:43,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:26:43,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:26:43,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:26:43,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:26:43,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:26:43,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:26:43,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:26:43,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:26:43,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:26:43,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:26:43,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:26:43,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:26:43,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:26:43,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:26:43,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:26:43,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:26:43,387 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:26:43,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:26:43,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:26:43,388 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:26:43,388 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:26:43,388 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:26:43,388 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:26:43,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:26:43,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:26:43,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:26:43,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:26:43,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:26:43,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:26:43,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:26:43,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:26:43,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:26:43,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:26:43,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:26:43,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:26:43,395 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:26:43,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a799124555890ca53ef8c243a58e7f790fa6b6f5 [2021-07-06 20:26:43,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:26:43,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:26:43,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:26:43,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:26:43,587 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:26:43,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-07-06 20:26:43,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c887c9/04cea7bd961b4db0ae7fcda46f601104/FLAGee4d05796 [2021-07-06 20:26:44,027 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:26:44,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_productSimulator.cil.c [2021-07-06 20:26:44,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c887c9/04cea7bd961b4db0ae7fcda46f601104/FLAGee4d05796 [2021-07-06 20:26:44,045 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336c887c9/04cea7bd961b4db0ae7fcda46f601104 [2021-07-06 20:26:44,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:26:44,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:26:44,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:26:44,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:26:44,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:26:44,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b691f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44, skipping insertion in model container [2021-07-06 20:26:44,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:26:44,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:26:44,316 WARN L224 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_productSimulator.cil.c[19705,19718] [2021-07-06 20:26:44,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:26:44,334 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:26:44,386 WARN L224 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_productSimulator.cil.c[19705,19718] [2021-07-06 20:26:44,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:26:44,425 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:26:44,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44 WrapperNode [2021-07-06 20:26:44,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:26:44,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:26:44,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:26:44,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:26:44,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:26:44,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:26:44,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:26:44,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:26:44,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:26:44,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:26:44,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:26:44,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:26:44,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (1/1) ... [2021-07-06 20:26:44,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:26:44,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:26:44,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:26:44,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:26:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:26:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:26:44,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:26:44,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:26:45,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:26:45,670 INFO L299 CfgBuilder]: Removed 906 assume(true) statements. [2021-07-06 20:26:45,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:26:45 BoogieIcfgContainer [2021-07-06 20:26:45,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:26:45,673 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:26:45,673 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:26:45,675 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:26:45,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:26:45,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:26:44" (1/3) ... [2021-07-06 20:26:45,676 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b9c526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:26:45, skipping insertion in model container [2021-07-06 20:26:45,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:26:45,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:26:44" (2/3) ... [2021-07-06 20:26:45,676 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b9c526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:26:45, skipping insertion in model container [2021-07-06 20:26:45,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:26:45,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:26:45" (3/3) ... [2021-07-06 20:26:45,677 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2021-07-06 20:26:45,701 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:26:45,701 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:26:45,701 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:26:45,701 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:26:45,701 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:26:45,701 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:26:45,702 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:26:45,702 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:26:45,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:26:45,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-07-06 20:26:45,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:26:45,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:26:45,749 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:45,749 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:45,749 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:26:45,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:26:45,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 309 [2021-07-06 20:26:45,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:26:45,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:26:45,767 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:45,767 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:45,771 INFO L791 eck$LassoCheckResult]: Stem: 350#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 288#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 281#L971true havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 369#L946true select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 371#L946-1true select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 373#L946-2true select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 375#L946-3true select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 359#L946-4true select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 360#L946-5true select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 91#L963true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 367#L979true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 247#L498true assume 0 != main_~tmp~3; 414#L471true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 368#L1001-1true [2021-07-06 20:26:45,771 INFO L793 eck$LassoCheckResult]: Loop: 368#L1001-1true assume !false; 9#L533true assume test_~splverifierCounter~0 < 4; 71#L534true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 242#L542true assume !(0 != test_~tmp~4); 245#L542-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 138#L552true assume !(0 != test_~tmp___0~0); 141#L552-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 197#L562true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 136#L574true assume !(0 != test_~tmp___1~0); 140#L574-1true assume !(0 != ~pumpRunning~0); 291#L615true assume !(0 != ~systemActive~0); 61#L622true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 17#L1072-10true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 22#L995true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 368#L1001-1true [2021-07-06 20:26:45,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:45,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-07-06 20:26:45,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:45,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635383328] [2021-07-06 20:26:45,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:45,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:45,929 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,028 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:46,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:46,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1299784635, now seen corresponding path program 1 times [2021-07-06 20:26:46,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:46,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622323407] [2021-07-06 20:26:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:46,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,090 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,097 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:46,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:46,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1167266427, now seen corresponding path program 1 times [2021-07-06 20:26:46,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:46,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094155500] [2021-07-06 20:26:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:46,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:26:46,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:26:46,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:26:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:26:46,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:26:46,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094155500] [2021-07-06 20:26:46,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094155500] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:26:46,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:26:46,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-06 20:26:46,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042071191] [2021-07-06 20:26:46,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-07-06 20:26:46,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:26:46,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-06 20:26:46,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-06 20:26:46,335 INFO L87 Difference]: Start difference. First operand has 473 states, 472 states have (on average 1.5677966101694916) internal successors, (740), 472 states have internal predecessors, (740), 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 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 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) [2021-07-06 20:26:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:26:46,673 INFO L93 Difference]: Finished difference Result 1451 states and 2244 transitions. [2021-07-06 20:26:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-06 20:26:46,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1451 states and 2244 transitions. [2021-07-06 20:26:46,681 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 958 [2021-07-06 20:26:46,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1451 states to 1423 states and 2216 transitions. [2021-07-06 20:26:46,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1423 [2021-07-06 20:26:46,692 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1423 [2021-07-06 20:26:46,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1423 states and 2216 transitions. [2021-07-06 20:26:46,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:26:46,696 INFO L681 BuchiCegarLoop]: Abstraction has 1423 states and 2216 transitions. [2021-07-06 20:26:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states and 2216 transitions. [2021-07-06 20:26:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 515. [2021-07-06 20:26:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 515 states have (on average 1.5436893203883495) internal successors, (795), 514 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:26:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 795 transitions. [2021-07-06 20:26:46,731 INFO L704 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2021-07-06 20:26:46,731 INFO L587 BuchiCegarLoop]: Abstraction has 515 states and 795 transitions. [2021-07-06 20:26:46,731 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:26:46,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 515 states and 795 transitions. [2021-07-06 20:26:46,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 344 [2021-07-06 20:26:46,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:26:46,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:26:46,734 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:46,734 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:46,734 INFO L791 eck$LassoCheckResult]: Stem: 2372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2335#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 2327#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2328#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2390#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2391#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2392#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2384#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 2385#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 2097#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 2098#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2308#L498 assume 0 != main_~tmp~3; 2309#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1980#L1001-1 [2021-07-06 20:26:46,735 INFO L793 eck$LassoCheckResult]: Loop: 1980#L1001-1 assume !false; 1956#L533 assume test_~splverifierCounter~0 < 4; 1957#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 2067#L542 assume !(0 != test_~tmp~4); 2203#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 2168#L552 assume !(0 != test_~tmp___0~0); 2169#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 2175#L562 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet46;havoc test_#t~nondet46; 2164#L574 assume !(0 != test_~tmp___1~0); 2166#L574-1 assume !(0 != ~pumpRunning~0); 2173#L615 assume 0 != ~systemActive~0; 2339#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2344#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2242#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1950#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 1971#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1972#L995 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1980#L1001-1 [2021-07-06 20:26:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-07-06 20:26:46,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:46,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770809132] [2021-07-06 20:26:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:46,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,759 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,780 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:46,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:46,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1493625380, now seen corresponding path program 1 times [2021-07-06 20:26:46,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:46,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049257080] [2021-07-06 20:26:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:46,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,802 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:46,804 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:46,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:46,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1931444270, now seen corresponding path program 1 times [2021-07-06 20:26:46,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:46,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315381573] [2021-07-06 20:26:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:46,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:26:46,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:26:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:26:46,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:26:46,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315381573] [2021-07-06 20:26:46,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315381573] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:26:46,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:26:46,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-06 20:26:46,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187569378] [2021-07-06 20:26:46,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:46,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-07-06 20:26:46,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:26:46,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 20:26:46,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 20:26:46,904 INFO L87 Difference]: Start difference. First operand 515 states and 795 transitions. cyclomatic complexity: 283 Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:26:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:26:47,214 INFO L93 Difference]: Finished difference Result 1966 states and 3082 transitions. [2021-07-06 20:26:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-06 20:26:47,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1966 states and 3082 transitions. [2021-07-06 20:26:47,223 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1343 [2021-07-06 20:26:47,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1966 states to 1966 states and 3082 transitions. [2021-07-06 20:26:47,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1966 [2021-07-06 20:26:47,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1966 [2021-07-06 20:26:47,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1966 states and 3082 transitions. [2021-07-06 20:26:47,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:26:47,233 INFO L681 BuchiCegarLoop]: Abstraction has 1966 states and 3082 transitions. [2021-07-06 20:26:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states and 3082 transitions. [2021-07-06 20:26:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1017. [2021-07-06 20:26:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1017 states have (on average 1.5427728613569323) internal successors, (1569), 1016 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:26:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1569 transitions. [2021-07-06 20:26:47,249 INFO L704 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2021-07-06 20:26:47,250 INFO L587 BuchiCegarLoop]: Abstraction has 1017 states and 1569 transitions. [2021-07-06 20:26:47,250 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-07-06 20:26:47,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1017 states and 1569 transitions. [2021-07-06 20:26:47,253 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 688 [2021-07-06 20:26:47,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:26:47,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:26:47,254 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:26:47,254 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] [2021-07-06 20:26:47,254 INFO L791 eck$LassoCheckResult]: Stem: 4964#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(13);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string83.base, #t~string83.offset, 1);call write~init~int(77, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(101, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(116, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(104, #t~string83.base, 4 + #t~string83.offset, 1);call write~init~int(58, #t~string83.base, 5 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 6 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string85.base, #t~string85.offset, 1);call write~init~int(82, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(73, #t~string85.base, 2 + #t~string85.offset, 1);call write~init~int(84, #t~string85.base, 3 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 4 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string87.base, #t~string87.offset, 1);call write~init~int(75, #t~string87.base, 1 + #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 2 + #t~string87.offset, 1);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string89.base, #t~string89.offset, 1);call write~init~int(0, #t~string89.base, 1 + #t~string89.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 4900#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 4889#L971 havoc select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75, select_features_#t~ret76;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4890#L946 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4996#L946-1 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4997#L946-2 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4998#L946-3 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4981#L946-4 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75;havoc select_one_#res;havoc select_one_#t~nondet70, select_one_~retValue_acc~8, select_one_~choice~0;havoc select_one_~retValue_acc~8;select_one_~choice~0 := select_one_#t~nondet70;havoc select_one_#t~nondet70;select_one_~retValue_acc~8 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~8; 4982#L946-5 select_features_#t~ret76 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret76;havoc select_features_#t~ret76; 4601#L963 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~9; 4602#L979 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 4841#L498 assume 0 != main_~tmp~3; 4842#L471 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4806#L1001-1 [2021-07-06 20:26:47,254 INFO L793 eck$LassoCheckResult]: Loop: 4806#L1001-1 assume !false; 4455#L533 assume test_~splverifierCounter~0 < 4; 4456#L534 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 5457#L542 assume !(0 != test_~tmp~4); 5454#L542-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 5453#L552 assume !(0 != test_~tmp___0~0); 5452#L552-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 5450#L562 assume 0 != test_~tmp___2~0; 4675#L563 assume 0 != ~__SELECTED_FEATURE_startCommand~0;~systemActive~0 := 1; 4676#L574-1 assume !(0 != ~pumpRunning~0); 5416#L615 assume 0 != ~systemActive~0; 5349#L758 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 5414#L715-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 4751#L672-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 4447#L622 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 4554#L1072-10 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 4481#L995 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 4482#L1104 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 4994#L1001 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 4806#L1001-1 [2021-07-06 20:26:47,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:47,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 3 times [2021-07-06 20:26:47,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:47,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155601095] [2021-07-06 20:26:47,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:47,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,274 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,291 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,297 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:47,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1754430909, now seen corresponding path program 1 times [2021-07-06 20:26:47,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:47,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176073492] [2021-07-06 20:26:47,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:47,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,300 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,302 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:26:47,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1917272627, now seen corresponding path program 1 times [2021-07-06 20:26:47,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:26:47,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352163008] [2021-07-06 20:26:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:26:47,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:26:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,330 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:26:47,345 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:26:47,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:26:47,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:26:47,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-07-06 20:27:36,002 WARN L205 SmtUtils]: Spent 48.55 s on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-07-06 20:27:36,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:27:36,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2142 [2021-07-06 20:27:57,328 WARN L205 SmtUtils]: Spent 21.23 s on a formula simplification that was a NOOP. DAG size: 444 [2021-07-06 20:27:57,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:27:57 BoogieIcfgContainer [2021-07-06 20:27:57,381 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:27:57,381 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:27:57,381 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:27:57,381 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:27:57,382 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:26:45" (3/4) ... [2021-07-06 20:27:57,383 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:27:57,426 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:27:57,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:27:57,427 INFO L168 Benchmark]: Toolchain (without parser) took 73379.09 ms. Allocated memory was 58.7 MB in the beginning and 228.6 MB in the end (delta: 169.9 MB). Free memory was 31.4 MB in the beginning and 189.7 MB in the end (delta: -158.3 MB). Peak memory consumption was 139.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,427 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 28.5 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:27:57,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.33 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 28.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.24 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 31.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,428 INFO L168 Benchmark]: Boogie Preprocessor took 103.91 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 31.5 MB in the beginning and 53.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,428 INFO L168 Benchmark]: RCFGBuilder took 1032.54 ms. Allocated memory was 77.6 MB in the beginning and 127.9 MB in the end (delta: 50.3 MB). Free memory was 53.6 MB in the beginning and 71.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,428 INFO L168 Benchmark]: BuchiAutomizer took 71708.20 ms. Allocated memory was 127.9 MB in the beginning and 228.6 MB in the end (delta: 100.7 MB). Free memory was 71.7 MB in the beginning and 63.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 110.3 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,429 INFO L168 Benchmark]: Witness Printer took 45.09 ms. Allocated memory is still 228.6 MB. Free memory was 63.6 MB in the beginning and 189.7 MB in the end (delta: -126.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-07-06 20:27:57,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.5 MB in the beginning and 28.5 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.33 ms. Allocated memory is still 58.7 MB. Free memory was 31.3 MB in the beginning and 28.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.24 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 31.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.91 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 31.5 MB in the beginning and 53.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1032.54 ms. Allocated memory was 77.6 MB in the beginning and 127.9 MB in the end (delta: 50.3 MB). Free memory was 53.6 MB in the beginning and 71.7 MB in the end (delta: -18.1 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 71708.20 ms. Allocated memory was 127.9 MB in the beginning and 228.6 MB in the end (delta: 100.7 MB). Free memory was 71.7 MB in the beginning and 63.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 110.3 MB. Max. memory is 16.1 GB. * Witness Printer took 45.09 ms. Allocated memory is still 228.6 MB. Free memory was 63.6 MB in the beginning and 189.7 MB in the end (delta: -126.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * 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 7 locations. The remainder module has 1017 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 71.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 70.8s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 43.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1857 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 1017 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1814 SDtfs, 7273 SDslu, 8753 SDs, 0 SdLazy, 437 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 401.5ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 532]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20966} State at position 1 is {retValue_acc=1, NULL=0, NULL=20984, NULL=0, NULL=20966, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@729dde44=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438341a6=53, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e57f9d6=0, NULL=0, NULL=0, methaneLevelCritical=0, NULL=0, tmp=0, NULL=0, NULL=20992, tmp___1=0, NULL=0, NULL=20989, NULL=20985, cleanupTimeShifts=4, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b5dc65=0, NULL=0, waterLevel=1, NULL=0, NULL=0, __SELECTED_FEATURE_methaneAlarm=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=20982, tmp=1, NULL=0, NULL=0, NULL=0, NULL=20981, __SELECTED_FEATURE_stopCommand=0, NULL=20970, NULL=20991, NULL=20971, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60491424=0, NULL=20975, NULL=20978, head=0, NULL=0, NULL=0, tmp=0, NULL=20994, NULL=0, NULL=0, choice=51, \result=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@749e2574=0, __SELECTED_FEATURE_base=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@204a1fc2=0, retValue_acc=0, NULL=20980, NULL=0, NULL=20987, NULL=0, NULL=0, NULL=20988, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c000772=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=20972, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db8e9ff=0, NULL=20986, NULL=20993, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54537c7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c5fb2cf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@145e8386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0a1347=0, tmp___0=1, NULL=20983, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52e9331b=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, NULL=20973, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6624e18b=0, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=20967, \result=0, retValue_acc=51, __SELECTED_FEATURE_highWaterSensor=0, NULL=20990, NULL=20977, retValue_acc=1, NULL=20976, __SELECTED_FEATURE_methaneQuery=0, NULL=20968, tmp___2=53, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=20969, NULL=20974, tmp___1=0, __SELECTED_FEATURE_startCommand=51, NULL=20979} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L512] int __SELECTED_FEATURE_base ; [L513] int __SELECTED_FEATURE_highWaterSensor ; [L514] int __SELECTED_FEATURE_lowWaterSensor ; [L515] int __SELECTED_FEATURE_methaneQuery ; [L516] int __SELECTED_FEATURE_methaneAlarm ; [L517] int __SELECTED_FEATURE_stopCommand ; [L518] int __SELECTED_FEATURE_startCommand ; [L519] int __GUIDSL_ROOT_PRODUCTION ; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L1029] int waterLevel = 1; [L1030] int methaneLevelCritical = 0; [L489] int retValue_acc ; [L490] int tmp ; [L970] __GUIDSL_ROOT_PRODUCTION = 1 [L955] __SELECTED_FEATURE_base = 1 [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L956] __SELECTED_FEATURE_highWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L957] __SELECTED_FEATURE_lowWaterSensor = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L958] __SELECTED_FEATURE_methaneQuery = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L959] __SELECTED_FEATURE_methaneAlarm = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L960] __SELECTED_FEATURE_stopCommand = select_one() [L941] int retValue_acc ; [L942] int choice = __VERIFIER_nondet_int(); [L945] retValue_acc = choice [L946] return (retValue_acc); [L961] __SELECTED_FEATURE_startCommand = select_one() [L975] int retValue_acc ; [L978] retValue_acc = __SELECTED_FEATURE_base [L979] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L523] int splverifierCounter ; [L524] int tmp ; [L525] int tmp___0 ; [L526] int tmp___1 ; [L527] int tmp___2 ; [L530] splverifierCounter = 0 Loop: [L532] COND TRUE 1 [L534] COND TRUE splverifierCounter < 4 [L540] tmp = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp)) [L550] tmp___0 = __VERIFIER_nondet_int() [L552] COND FALSE !(\read(tmp___0)) [L560] tmp___2 = __VERIFIER_nondet_int() [L562] COND TRUE \read(tmp___2) [L563] COND TRUE \read(__SELECTED_FEATURE_startCommand) [L934] systemActive = 1 [L615] COND FALSE !(\read(pumpRunning)) [L622] COND TRUE \read(systemActive) [L758] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L715] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L672] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L987] int tmp ; [L988] int tmp___0 ; [L989] int tmp___1 ; [L1068] int retValue_acc ; [L1071] retValue_acc = methaneLevelCritical [L1072] return (retValue_acc); [L993] tmp = isMethaneLevelCritical() [L995] COND FALSE !(\read(tmp)) [L1100] int retValue_acc ; [L1103] retValue_acc = waterLevel [L1104] return (retValue_acc); [L999] tmp___0 = getWaterLevel() [L1001] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:27:57,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...