./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product28.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 fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:55,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:55,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:55,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:55,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:55,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:55,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:55,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:55,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:55,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:55,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:55,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:55,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:55,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:55,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:55,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:55,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:55,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:55,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:55,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:55,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:55,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:55,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:55,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:55,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:55,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:55,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:55,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:55,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:55,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:55,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:55,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:55,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:55,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:55,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:55,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:55,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:55,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:55,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:55,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:55,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:55,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:55,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:55,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:55,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:55,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:55,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:55,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:55,401 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:55,402 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:55,402 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:55,402 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:55,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:55,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:55,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:55,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:55,406 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:55,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:55,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:55,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:55,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:55,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:55,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:55,408 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:55,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad1f46ef1d66409ef51b118a06472b77e31d844250c32d0f4ef55111b850abc [2022-02-21 04:16:55,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:55,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:55,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:55,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:55,607 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:55,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2022-02-21 04:16:55,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d2cf355/6fff9e410c69415f962fcccd70243486/FLAGd69b17918 [2022-02-21 04:16:56,058 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:56,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2022-02-21 04:16:56,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d2cf355/6fff9e410c69415f962fcccd70243486/FLAGd69b17918 [2022-02-21 04:16:56,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38d2cf355/6fff9e410c69415f962fcccd70243486 [2022-02-21 04:16:56,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:56,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:56,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:56,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:56,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:56,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be8f80b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56, skipping insertion in model container [2022-02-21 04:16:56,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:56,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:56,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2022-02-21 04:16:56,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:56,396 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:56,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c[8048,8061] [2022-02-21 04:16:56,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:56,461 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:56,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56 WrapperNode [2022-02-21 04:16:56,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:56,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:56,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:56,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:56,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,535 INFO L137 Inliner]: procedures = 55, calls = 155, calls flagged for inlining = 52, calls inlined = 53, statements flattened = 420 [2022-02-21 04:16:56,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:56,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:56,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:56,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:56,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:56,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:56,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:56,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:56,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (1/1) ... [2022-02-21 04:16:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:56,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:56,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:56,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:56,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:56,680 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:56,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:57,000 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:57,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:57,010 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:57,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57 BoogieIcfgContainer [2022-02-21 04:16:57,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:57,012 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:57,012 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:57,014 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:57,015 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,015 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:56" (1/3) ... [2022-02-21 04:16:57,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c9b73a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:57, skipping insertion in model container [2022-02-21 04:16:57,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:56" (2/3) ... [2022-02-21 04:16:57,016 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c9b73a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:57, skipping insertion in model container [2022-02-21 04:16:57,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:57,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57" (3/3) ... [2022-02-21 04:16:57,019 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2022-02-21 04:16:57,063 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:57,064 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:57,064 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:57,064 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:57,064 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:57,064 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:57,064 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:57,065 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:57,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2022-02-21 04:16:57,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:57,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:57,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,143 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:57,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:57,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2022-02-21 04:16:57,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:57,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:57,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:57,169 INFO L791 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 50#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 103#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 23#L83true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 74#L537true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 71#L514true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 42#L306-2true [2022-02-21 04:16:57,170 INFO L793 eck$LassoCheckResult]: Loop: 42#L306-2true assume !false; 68#L307true assume test_~splverifierCounter~0#1 < 4; 8#L308true test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 94#L316true assume !(0 != test_~tmp~3#1); 65#L316-2true test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 26#L326true assume !(0 != test_~tmp___0~1#1); 14#L326-2true test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 69#L336true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; 29#L344true assume !(0 != test_~tmp___1~0#1); 67#L344-2true assume { :begin_inline_timeShift } true; 105#L107true assume !(0 != ~pumpRunning~0); 57#L107-2true assume !(0 != ~systemActive~0); 79#L114-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 102#L409true __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 36#L569true assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 37#L575-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 73#L124true assume { :end_inline_timeShift } true; 42#L306-2true [2022-02-21 04:16:57,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:57,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839327696] [2022-02-21 04:16:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,303 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,347 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1380821057, now seen corresponding path program 1 times [2022-02-21 04:16:57,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402664906] [2022-02-21 04:16:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:57,385 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:57,388 INFO L85 PathProgramCache]: Analyzing trace with hash 449139453, now seen corresponding path program 1 times [2022-02-21 04:16:57,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:57,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115447857] [2022-02-21 04:16:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:57,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:57,534 INFO L290 TraceCheckUtils]: 0: Hoare triple {121#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {123#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,534 INFO L290 TraceCheckUtils]: 1: Hoare triple {123#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {123#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,535 INFO L290 TraceCheckUtils]: 2: Hoare triple {123#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {123#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:57,535 INFO L290 TraceCheckUtils]: 3: Hoare triple {123#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {124#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:57,536 INFO L290 TraceCheckUtils]: 4: Hoare triple {124#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {125#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:16:57,537 INFO L290 TraceCheckUtils]: 5: Hoare triple {125#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,537 INFO L290 TraceCheckUtils]: 6: Hoare triple {126#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,537 INFO L290 TraceCheckUtils]: 7: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !false; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,538 INFO L290 TraceCheckUtils]: 8: Hoare triple {126#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,539 INFO L290 TraceCheckUtils]: 9: Hoare triple {126#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,539 INFO L290 TraceCheckUtils]: 10: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,539 INFO L290 TraceCheckUtils]: 11: Hoare triple {126#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,540 INFO L290 TraceCheckUtils]: 12: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,541 INFO L290 TraceCheckUtils]: 13: Hoare triple {126#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,541 INFO L290 TraceCheckUtils]: 14: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet20#1;havoc test_#t~nondet20#1; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,542 INFO L290 TraceCheckUtils]: 15: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___1~0#1); {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,551 INFO L290 TraceCheckUtils]: 16: Hoare triple {126#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,551 INFO L290 TraceCheckUtils]: 17: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {126#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:57,552 INFO L290 TraceCheckUtils]: 18: Hoare triple {126#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {122#false} is VALID [2022-02-21 04:16:57,552 INFO L290 TraceCheckUtils]: 19: Hoare triple {122#false} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {122#false} is VALID [2022-02-21 04:16:57,552 INFO L290 TraceCheckUtils]: 20: Hoare triple {122#false} __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; {122#false} is VALID [2022-02-21 04:16:57,553 INFO L290 TraceCheckUtils]: 21: Hoare triple {122#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {122#false} is VALID [2022-02-21 04:16:57,553 INFO L290 TraceCheckUtils]: 22: Hoare triple {122#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {122#false} is VALID [2022-02-21 04:16:57,553 INFO L290 TraceCheckUtils]: 23: Hoare triple {122#false} assume { :end_inline_timeShift } true; {122#false} is VALID [2022-02-21 04:16:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:57,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:57,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115447857] [2022-02-21 04:16:57,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115447857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:57,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:57,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:57,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108688848] [2022-02-21 04:16:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:57,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:57,728 INFO L87 Difference]: Start difference. First operand has 113 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,442 INFO L93 Difference]: Finished difference Result 384 states and 494 transitions. [2022-02-21 04:16:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:16:58,443 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,465 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:58,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 384 states and 494 transitions. [2022-02-21 04:16:58,486 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 248 [2022-02-21 04:16:58,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 384 states to 344 states and 454 transitions. [2022-02-21 04:16:58,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 344 [2022-02-21 04:16:58,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 344 [2022-02-21 04:16:58,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 344 states and 454 transitions. [2022-02-21 04:16:58,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:58,511 INFO L681 BuchiCegarLoop]: Abstraction has 344 states and 454 transitions. [2022-02-21 04:16:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states and 454 transitions. [2022-02-21 04:16:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 158. [2022-02-21 04:16:58,536 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:58,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 344 states and 454 transitions. Second operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,538 INFO L74 IsIncluded]: Start isIncluded. First operand 344 states and 454 transitions. Second operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,539 INFO L87 Difference]: Start difference. First operand 344 states and 454 transitions. Second operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,550 INFO L93 Difference]: Finished difference Result 344 states and 454 transitions. [2022-02-21 04:16:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 454 transitions. [2022-02-21 04:16:58,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:58,552 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:58,553 INFO L74 IsIncluded]: Start isIncluded. First operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 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 344 states and 454 transitions. [2022-02-21 04:16:58,553 INFO L87 Difference]: Start difference. First operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 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 344 states and 454 transitions. [2022-02-21 04:16:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:58,562 INFO L93 Difference]: Finished difference Result 344 states and 454 transitions. [2022-02-21 04:16:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 454 transitions. [2022-02-21 04:16:58,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:58,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:58,563 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:58,564 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:58,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 158 states have (on average 1.3227848101265822) internal successors, (209), 157 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2022-02-21 04:16:58,568 INFO L704 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2022-02-21 04:16:58,568 INFO L587 BuchiCegarLoop]: Abstraction has 158 states and 209 transitions. [2022-02-21 04:16:58,568 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:58,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 158 states and 209 transitions. [2022-02-21 04:16:58,569 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 113 [2022-02-21 04:16:58,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:58,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:58,569 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:58,570 INFO L791 eck$LassoCheckResult]: Stem: 615#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 572#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 573#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 583#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 547#L83 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 548#L537 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 602#L514 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 574#L306-2 [2022-02-21 04:16:58,570 INFO L793 eck$LassoCheckResult]: Loop: 574#L306-2 assume !false; 575#L307 assume test_~splverifierCounter~0#1 < 4; 522#L308 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 523#L316 assume !(0 != test_~tmp~3#1); 532#L316-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 549#L326 assume !(0 != test_~tmp___0~1#1); 533#L326-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 534#L336 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 566#L289 assume { :end_inline_startSystem } true; 556#L344-2 assume { :begin_inline_timeShift } true; 599#L107 assume !(0 != ~pumpRunning~0); 589#L107-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 552#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 553#L131-1 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L139-1 assume { :end_inline_processEnvironment } true; 518#L114-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 604#L409 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 567#L569 assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; 524#L575-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 568#L124 assume { :end_inline_timeShift } true; 574#L306-2 [2022-02-21 04:16:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:58,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501426250] [2022-02-21 04:16:58,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,580 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,590 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,590 INFO L85 PathProgramCache]: Analyzing trace with hash -978262779, now seen corresponding path program 1 times [2022-02-21 04:16:58,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82964359] [2022-02-21 04:16:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,597 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:58,603 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:58,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1668706505, now seen corresponding path program 1 times [2022-02-21 04:16:58,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:58,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105004800] [2022-02-21 04:16:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:58,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:58,643 INFO L290 TraceCheckUtils]: 0: Hoare triple {1368#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,643 INFO L290 TraceCheckUtils]: 1: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,644 INFO L290 TraceCheckUtils]: 2: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,644 INFO L290 TraceCheckUtils]: 3: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,645 INFO L290 TraceCheckUtils]: 4: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,645 INFO L290 TraceCheckUtils]: 5: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,645 INFO L290 TraceCheckUtils]: 6: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,646 INFO L290 TraceCheckUtils]: 7: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume !false; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,646 INFO L290 TraceCheckUtils]: 8: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,646 INFO L290 TraceCheckUtils]: 9: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,647 INFO L290 TraceCheckUtils]: 10: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~3#1); {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,647 INFO L290 TraceCheckUtils]: 11: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,647 INFO L290 TraceCheckUtils]: 12: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,648 INFO L290 TraceCheckUtils]: 13: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,648 INFO L290 TraceCheckUtils]: 14: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,648 INFO L290 TraceCheckUtils]: 15: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_startSystem } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,649 INFO L290 TraceCheckUtils]: 16: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,649 INFO L290 TraceCheckUtils]: 17: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,649 INFO L290 TraceCheckUtils]: 18: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,650 INFO L290 TraceCheckUtils]: 19: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,650 INFO L290 TraceCheckUtils]: 20: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,650 INFO L290 TraceCheckUtils]: 21: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {1370#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:58,651 INFO L290 TraceCheckUtils]: 22: Hoare triple {1370#(= ~methaneLevelCritical~0 0)} assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; {1371#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:58,651 INFO L290 TraceCheckUtils]: 23: Hoare triple {1371#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; {1372#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} is VALID [2022-02-21 04:16:58,652 INFO L290 TraceCheckUtils]: 24: Hoare triple {1372#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~5#1; {1369#false} is VALID [2022-02-21 04:16:58,652 INFO L290 TraceCheckUtils]: 25: Hoare triple {1369#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {1369#false} is VALID [2022-02-21 04:16:58,652 INFO L290 TraceCheckUtils]: 26: Hoare triple {1369#false} assume { :end_inline_timeShift } true; {1369#false} is VALID [2022-02-21 04:16:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:58,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:58,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105004800] [2022-02-21 04:16:58,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105004800] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:58,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:58,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:58,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390751024] [2022-02-21 04:16:58,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:58,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:58,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:58,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:58,756 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. cyclomatic complexity: 54 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,269 INFO L93 Difference]: Finished difference Result 552 states and 733 transitions. [2022-02-21 04:16:59,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:59,270 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,288 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:59,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 552 states and 733 transitions. [2022-02-21 04:16:59,304 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 418 [2022-02-21 04:16:59,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 552 states to 552 states and 733 transitions. [2022-02-21 04:16:59,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2022-02-21 04:16:59,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2022-02-21 04:16:59,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 552 states and 733 transitions. [2022-02-21 04:16:59,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:59,319 INFO L681 BuchiCegarLoop]: Abstraction has 552 states and 733 transitions. [2022-02-21 04:16:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states and 733 transitions. [2022-02-21 04:16:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 309. [2022-02-21 04:16:59,327 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:59,327 INFO L82 GeneralOperation]: Start isEquivalent. First operand 552 states and 733 transitions. Second operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,328 INFO L74 IsIncluded]: Start isIncluded. First operand 552 states and 733 transitions. Second operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,328 INFO L87 Difference]: Start difference. First operand 552 states and 733 transitions. Second operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,341 INFO L93 Difference]: Finished difference Result 552 states and 733 transitions. [2022-02-21 04:16:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 733 transitions. [2022-02-21 04:16:59,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:59,342 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:59,343 INFO L74 IsIncluded]: Start isIncluded. First operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 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 552 states and 733 transitions. [2022-02-21 04:16:59,344 INFO L87 Difference]: Start difference. First operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 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 552 states and 733 transitions. [2022-02-21 04:16:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:59,357 INFO L93 Difference]: Finished difference Result 552 states and 733 transitions. [2022-02-21 04:16:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 733 transitions. [2022-02-21 04:16:59,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:59,358 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:59,358 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:59,358 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 309 states have (on average 1.3042071197411003) internal successors, (403), 308 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 403 transitions. [2022-02-21 04:16:59,364 INFO L704 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2022-02-21 04:16:59,364 INFO L587 BuchiCegarLoop]: Abstraction has 309 states and 403 transitions. [2022-02-21 04:16:59,364 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:59,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 309 states and 403 transitions. [2022-02-21 04:16:59,366 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 226 [2022-02-21 04:16:59,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:59,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:59,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:59,366 INFO L791 eck$LassoCheckResult]: Stem: 2056#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1998#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1999#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2010#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1970#L83 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 1971#L537 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2032#L514 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_#t~nondet20#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2033#L306-2 [2022-02-21 04:16:59,367 INFO L793 eck$LassoCheckResult]: Loop: 2033#L306-2 assume !false; 2108#L307 assume test_~splverifierCounter~0#1 < 4; 2109#L308 test_~tmp~3#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1; 2238#L316 assume !(0 != test_~tmp~3#1); 2236#L316-2 test_~tmp___0~1#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1; 2233#L326 assume !(0 != test_~tmp___0~1#1); 2231#L326-2 test_~tmp___2~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1; 2208#L336 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2205#L289 assume { :end_inline_startSystem } true; 2204#L344-2 assume { :begin_inline_timeShift } true; 2201#L107 assume !(0 != ~pumpRunning~0); 2016#L107-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1977#L139 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1978#L131-1 assume { :end_inline_processEnvironment__wrappee__base } true; 2003#L139-1 assume { :end_inline_processEnvironment } true; 2118#L114-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret27#1, __utac_acc__Specification3_spec__1_#t~ret28#1, __utac_acc__Specification3_spec__1_#t~ret29#1, __utac_acc__Specification3_spec__1_~tmp~5#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~5#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 2117#L409 __utac_acc__Specification3_spec__1_#t~ret27#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~5#1 := __utac_acc__Specification3_spec__1_#t~ret27#1;havoc __utac_acc__Specification3_spec__1_#t~ret27#1; 2116#L569 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~5#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1; 2115#L441 __utac_acc__Specification3_spec__1_#t~ret28#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret28#1;havoc __utac_acc__Specification3_spec__1_#t~ret28#1; 2112#L575 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2111#L575-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2110#L124 assume { :end_inline_timeShift } true; 2033#L306-2 [2022-02-21 04:16:59,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:59,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662562029] [2022-02-21 04:16:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,381 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash 488558936, now seen corresponding path program 1 times [2022-02-21 04:16:59,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815583138] [2022-02-21 04:16:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,386 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,390 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1605401628, now seen corresponding path program 1 times [2022-02-21 04:16:59,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:59,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526450525] [2022-02-21 04:16:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:59,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,398 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:59,407 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:01 BoogieIcfgContainer [2022-02-21 04:17:01,719 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:01,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:01,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:01,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:01,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:57" (3/4) ... [2022-02-21 04:17:01,722 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:01,758 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:01,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:01,760 INFO L158 Benchmark]: Toolchain (without parser) took 5673.86ms. Allocated memory was 98.6MB in the beginning and 180.4MB in the end (delta: 81.8MB). Free memory was 64.6MB in the beginning and 106.4MB in the end (delta: -41.8MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,760 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:01,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.65ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 63.4MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.37ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 60.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,761 INFO L158 Benchmark]: Boogie Preprocessor took 31.01ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,761 INFO L158 Benchmark]: RCFGBuilder took 439.38ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 58.1MB in the beginning and 91.0MB in the end (delta: -32.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,761 INFO L158 Benchmark]: BuchiAutomizer took 4706.91ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 90.4MB in the beginning and 109.6MB in the end (delta: -19.2MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,762 INFO L158 Benchmark]: Witness Printer took 39.23ms. Allocated memory is still 180.4MB. Free memory was 109.6MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:01,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.65ms. Allocated memory is still 98.6MB. Free memory was 64.4MB in the beginning and 63.4MB in the end (delta: 1.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.37ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 60.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.01ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.38ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 58.1MB in the beginning and 91.0MB in the end (delta: -32.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 4706.91ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 90.4MB in the beginning and 109.6MB in the end (delta: -19.2MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. * Witness Printer took 39.23ms. Allocated memory is still 180.4MB. Free memory was 109.6MB in the beginning and 106.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 6 locations. The remainder module has 309 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 429 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 309 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1121 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1121 mSDsluCounter, 1908 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1576 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 332 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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: 306]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21663cd2=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f0de3e7=0, retValue_acc=1, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=1, tmp=0, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a280730=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74f0afb6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fc1f2d4=0, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68e042fd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@dbed1d1=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@667b3ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9b00a03=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 306]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] int pumpRunning = 0; [L100] int systemActive = 1; [L366] int waterLevel = 1; [L367] int methaneLevelCritical = 0; [L455] int cleanupTimeShifts = 4; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L528] int retValue_acc ; [L529] int tmp ; [L533] FCALL select_helpers() [L534] FCALL select_features() [L535] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L535] RET, EXPR valid_product() [L535] tmp = valid_product() [L537] COND TRUE \read(tmp) [L539] FCALL setup() [L540] CALL runTest() [L522] CALL test() [L297] int splverifierCounter ; [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L304] splverifierCounter = 0 Loop: [L306] COND TRUE 1 [L308] COND TRUE splverifierCounter < 4 [L314] tmp = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp)) [L324] tmp___0 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___0)) [L334] tmp___2 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___2) [L338] CALL startSystem() [L288] systemActive = 1 [L338] RET startSystem() [L353] CALL timeShift() [L107] COND FALSE !(\read(pumpRunning)) [L114] COND TRUE \read(systemActive) [L116] CALL processEnvironment() [L136] int tmp ; [L139] COND FALSE !(\read(pumpRunning)) [L154] FCALL processEnvironment__wrappee__base() [L116] RET processEnvironment() [L122] CALL __utac_acc__Specification3_spec__1() [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L567] CALL, EXPR isMethaneLevelCritical() [L405] int retValue_acc ; [L408] retValue_acc = methaneLevelCritical [L409] return (retValue_acc); [L567] RET, EXPR isMethaneLevelCritical() [L567] tmp = isMethaneLevelCritical() [L569] COND FALSE !(\read(tmp)) [L573] CALL, EXPR getWaterLevel() [L437] int retValue_acc ; [L440] retValue_acc = waterLevel [L441] return (retValue_acc); [L573] RET, EXPR getWaterLevel() [L573] tmp___0 = getWaterLevel() [L575] COND FALSE !(tmp___0 == 2) [L122] RET __utac_acc__Specification3_spec__1() [L353] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:01,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)