./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product41.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 7e401b19fa73801dafa3ee94892588c53fc375d864d82edcc9ff671172238c8c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 19:09:26,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 19:09:26,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 19:09:26,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 19:09:26,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 19:09:26,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 19:09:26,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 19:09:26,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 19:09:26,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 19:09:26,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 19:09:26,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 19:09:26,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 19:09:26,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 19:09:26,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 19:09:26,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 19:09:26,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 19:09:26,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 19:09:26,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 19:09:26,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 19:09:26,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 19:09:26,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 19:09:26,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 19:09:26,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 19:09:26,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 19:09:26,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 19:09:26,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 19:09:26,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 19:09:26,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 19:09:26,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 19:09:26,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 19:09:26,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 19:09:26,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 19:09:26,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 19:09:26,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 19:09:26,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 19:09:26,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 19:09:26,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 19:09:26,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 19:09:26,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 19:09:26,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 19:09:27,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 19:09:27,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 19:09:27,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 19:09:27,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 19:09:27,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 19:09:27,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 19:09:27,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 19:09:27,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 19:09:27,029 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 19:09:27,029 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 19:09:27,029 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 19:09:27,030 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 19:09:27,030 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 19:09:27,030 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 19:09:27,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 19:09:27,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 19:09:27,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 19:09:27,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 19:09:27,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 19:09:27,032 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 19:09:27,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 19:09:27,033 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 19:09:27,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 19:09:27,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 19:09:27,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 19:09:27,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 19:09:27,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 19:09:27,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 19:09:27,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 19:09:27,035 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 19:09:27,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e401b19fa73801dafa3ee94892588c53fc375d864d82edcc9ff671172238c8c [2021-12-19 19:09:27,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 19:09:27,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 19:09:27,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 19:09:27,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 19:09:27,250 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 19:09:27,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2021-12-19 19:09:27,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185388ae2/d48cad4ecbb54f4d90e8e57c00a293d4/FLAG86603fe41 [2021-12-19 19:09:27,702 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 19:09:27,703 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product41.cil.c [2021-12-19 19:09:27,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185388ae2/d48cad4ecbb54f4d90e8e57c00a293d4/FLAG86603fe41 [2021-12-19 19:09:27,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/185388ae2/d48cad4ecbb54f4d90e8e57c00a293d4 [2021-12-19 19:09:27,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 19:09:27,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 19:09:27,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 19:09:27,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 19:09:27,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 19:09:27,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:09:27" (1/1) ... [2021-12-19 19:09:27,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713b811a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:27, skipping insertion in model container [2021-12-19 19:09:27,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:09:27" (1/1) ... [2021-12-19 19:09:27,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 19:09:27,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 19:09:28,165 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_spec1_product41.cil.c[17493,17506] [2021-12-19 19:09:28,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:09:28,174 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 19:09:28,243 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_spec1_product41.cil.c[17493,17506] [2021-12-19 19:09:28,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 19:09:28,257 INFO L208 MainTranslator]: Completed translation [2021-12-19 19:09:28,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28 WrapperNode [2021-12-19 19:09:28,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 19:09:28,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 19:09:28,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 19:09:28,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 19:09:28,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,410 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 48, calls inlined = 56, statements flattened = 452 [2021-12-19 19:09:28,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 19:09:28,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 19:09:28,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 19:09:28,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 19:09:28,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 19:09:28,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 19:09:28,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 19:09:28,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 19:09:28,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (1/1) ... [2021-12-19 19:09:28,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 19:09:28,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 19:09:28,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 19:09:28,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 19:09:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 19:09:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 19:09:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 19:09:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 19:09:28,723 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 19:09:28,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 19:09:29,079 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 19:09:29,087 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 19:09:29,088 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-19 19:09:29,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:09:29 BoogieIcfgContainer [2021-12-19 19:09:29,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 19:09:29,091 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 19:09:29,091 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 19:09:29,106 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 19:09:29,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:09:29,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 07:09:27" (1/3) ... [2021-12-19 19:09:29,107 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15539183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:09:29, skipping insertion in model container [2021-12-19 19:09:29,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:09:29,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:09:28" (2/3) ... [2021-12-19 19:09:29,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15539183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 07:09:29, skipping insertion in model container [2021-12-19 19:09:29,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 19:09:29,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:09:29" (3/3) ... [2021-12-19 19:09:29,117 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2021-12-19 19:09:29,193 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 19:09:29,194 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 19:09:29,194 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 19:09:29,194 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 19:09:29,194 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 19:09:29,194 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 19:09:29,202 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 19:09:29,202 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 19:09:29,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:29,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-12-19 19:09:29,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:29,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:29,277 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:29,278 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:29,278 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 19:09:29,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:29,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-12-19 19:09:29,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:29,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:29,308 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:29,308 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:29,328 INFO L791 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 29#L880true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 39#L873true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 20#L888true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 66#L844true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 72#L818true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 48#L430-2true [2021-12-19 19:09:29,329 INFO L793 eck$LassoCheckResult]: Loop: 48#L430-2true assume !false; 116#L431true assume test_~splverifierCounter~0#1 < 4; 77#L432true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 93#L440true assume !(0 != test_~tmp~3#1); 90#L440-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 87#L450true assume !(0 != test_~tmp___0~0#1); 19#L450-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 58#L460true assume 0 != test_~tmp___2~0#1; 71#L466-2true assume { :begin_inline_timeShift } true; 44#L596true assume !(0 != ~pumpRunning~0); 103#L596-2true assume !(0 != ~systemActive~0); 89#L603-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 85#L533-1true __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 15#L910true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 13#L910-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 33#L613true assume { :end_inline_timeShift } true; 48#L430-2true [2021-12-19 19:09:29,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:29,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-19 19:09:29,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:29,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973639691] [2021-12-19 19:09:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:29,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:29,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:29,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:29,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash -325967420, now seen corresponding path program 1 times [2021-12-19 19:09:29,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:29,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219739669] [2021-12-19 19:09:29,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:29,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:29,604 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:29,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:29,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:29,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1029451656, now seen corresponding path program 1 times [2021-12-19 19:09:29,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:29,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036846515] [2021-12-19 19:09:29,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:29,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:09:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:09:29,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:09:29,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036846515] [2021-12-19 19:09:29,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036846515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:09:29,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:09:29,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:09:29,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835000004] [2021-12-19 19:09:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:09:29,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:09:29,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 19:09:29,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 19:09:29,908 INFO L87 Difference]: Start difference. First operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:09:30,015 INFO L93 Difference]: Finished difference Result 114 states and 145 transitions. [2021-12-19 19:09:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:09:30,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 145 transitions. [2021-12-19 19:09:30,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2021-12-19 19:09:30,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 104 states and 135 transitions. [2021-12-19 19:09:30,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-12-19 19:09:30,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-12-19 19:09:30,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 135 transitions. [2021-12-19 19:09:30,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:09:30,033 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-12-19 19:09:30,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 135 transitions. [2021-12-19 19:09:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-12-19 19:09:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.2980769230769231) internal successors, (135), 103 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-12-19 19:09:30,061 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-12-19 19:09:30,061 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-12-19 19:09:30,061 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 19:09:30,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 135 transitions. [2021-12-19 19:09:30,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 70 [2021-12-19 19:09:30,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:30,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:30,063 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:30,063 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:30,063 INFO L791 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 301#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 293#L880 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 294#L873 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 279#L888 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 280#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 330#L818 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 298#L430-2 [2021-12-19 19:09:30,064 INFO L793 eck$LassoCheckResult]: Loop: 298#L430-2 assume !false; 317#L431 assume test_~splverifierCounter~0#1 < 4; 339#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 340#L440 assume !(0 != test_~tmp~3#1); 334#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 344#L450 assume !(0 != test_~tmp___0~0#1); 277#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 278#L460 assume 0 != test_~tmp___2~0#1; 324#L466-2 assume { :begin_inline_timeShift } true; 308#L596 assume !(0 != ~pumpRunning~0); 309#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 314#L628 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 315#L620-1 assume { :end_inline_processEnvironment__wrappee__base } true; 300#L628-1 assume { :end_inline_processEnvironment } true; 341#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 343#L533-1 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 269#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 266#L910-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 267#L613 assume { :end_inline_timeShift } true; 298#L430-2 [2021-12-19 19:09:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-19 19:09:30,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433437206] [2021-12-19 19:09:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,073 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:30,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1621750243, now seen corresponding path program 1 times [2021-12-19 19:09:30,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672824392] [2021-12-19 19:09:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:09:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:09:30,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:09:30,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672824392] [2021-12-19 19:09:30,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672824392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:09:30,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:09:30,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 19:09:30,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294146946] [2021-12-19 19:09:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:09:30,097 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:09:30,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:09:30,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 19:09:30,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 19:09:30,098 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:09:30,130 INFO L93 Difference]: Finished difference Result 159 states and 200 transitions. [2021-12-19 19:09:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 19:09:30,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 200 transitions. [2021-12-19 19:09:30,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2021-12-19 19:09:30,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 200 transitions. [2021-12-19 19:09:30,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-12-19 19:09:30,134 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-12-19 19:09:30,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 200 transitions. [2021-12-19 19:09:30,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:09:30,134 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 200 transitions. [2021-12-19 19:09:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 200 transitions. [2021-12-19 19:09:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-12-19 19:09:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 158 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 200 transitions. [2021-12-19 19:09:30,140 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 200 transitions. [2021-12-19 19:09:30,140 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 200 transitions. [2021-12-19 19:09:30,140 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 19:09:30,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 200 transitions. [2021-12-19 19:09:30,141 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2021-12-19 19:09:30,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:30,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:30,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:30,142 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, 1, 1, 1] [2021-12-19 19:09:30,142 INFO L791 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 568#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 560#L880 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 561#L873 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 546#L888 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 547#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 601#L818 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 606#L430-2 [2021-12-19 19:09:30,142 INFO L793 eck$LassoCheckResult]: Loop: 606#L430-2 assume !false; 654#L431 assume test_~splverifierCounter~0#1 < 4; 613#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 614#L440 assume !(0 != test_~tmp~3#1); 607#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 620#L450 assume !(0 != test_~tmp___0~0#1); 544#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 545#L460 assume 0 != test_~tmp___2~0#1; 593#L466-2 assume { :begin_inline_timeShift } true; 576#L596 assume !(0 != ~pumpRunning~0); 577#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 581#L628 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 582#L573 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 578#L578 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 564#L748 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 520#L748-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 521#L754 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 522#L632 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 553#L620 assume { :end_inline_processEnvironment__wrappee__base } true; 584#L628-1 assume { :end_inline_processEnvironment } true; 662#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 661#L533-1 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 658#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 657#L910-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 655#L613 assume { :end_inline_timeShift } true; 606#L430-2 [2021-12-19 19:09:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-19 19:09:30,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687317470] [2021-12-19 19:09:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,151 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:30,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,160 INFO L85 PathProgramCache]: Analyzing trace with hash 105530797, now seen corresponding path program 1 times [2021-12-19 19:09:30,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875667604] [2021-12-19 19:09:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:09:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:09:30,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:09:30,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875667604] [2021-12-19 19:09:30,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875667604] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:09:30,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:09:30,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 19:09:30,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356450554] [2021-12-19 19:09:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:09:30,181 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:09:30,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:09:30,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 19:09:30,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 19:09:30,182 INFO L87 Difference]: Start difference. First operand 159 states and 200 transitions. cyclomatic complexity: 43 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:09:30,223 INFO L93 Difference]: Finished difference Result 451 states and 562 transitions. [2021-12-19 19:09:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:09:30,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 451 states and 562 transitions. [2021-12-19 19:09:30,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 328 [2021-12-19 19:09:30,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 451 states to 451 states and 562 transitions. [2021-12-19 19:09:30,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 451 [2021-12-19 19:09:30,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 451 [2021-12-19 19:09:30,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 451 states and 562 transitions. [2021-12-19 19:09:30,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:09:30,232 INFO L681 BuchiCegarLoop]: Abstraction has 451 states and 562 transitions. [2021-12-19 19:09:30,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states and 562 transitions. [2021-12-19 19:09:30,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 165. [2021-12-19 19:09:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.2484848484848485) internal successors, (206), 164 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2021-12-19 19:09:30,243 INFO L704 BuchiCegarLoop]: Abstraction has 165 states and 206 transitions. [2021-12-19 19:09:30,243 INFO L587 BuchiCegarLoop]: Abstraction has 165 states and 206 transitions. [2021-12-19 19:09:30,243 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 19:09:30,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 206 transitions. [2021-12-19 19:09:30,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2021-12-19 19:09:30,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:30,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:30,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:30,245 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, 1, 1, 1] [2021-12-19 19:09:30,245 INFO L791 eck$LassoCheckResult]: Stem: 1260#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1189#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1181#L880 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1182#L873 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1166#L888 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1167#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1225#L818 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1188#L430-2 [2021-12-19 19:09:30,245 INFO L793 eck$LassoCheckResult]: Loop: 1188#L430-2 assume !false; 1205#L431 assume test_~splverifierCounter~0#1 < 4; 1238#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1239#L440 assume !(0 != test_~tmp~3#1); 1232#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1244#L450 assume !(0 != test_~tmp___0~0#1); 1164#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1165#L460 assume 0 != test_~tmp___2~0#1; 1218#L466-2 assume { :begin_inline_timeShift } true; 1197#L596 assume !(0 != ~pumpRunning~0); 1198#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1203#L628 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1204#L573 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~5#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1206#L578 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1185#L748 assume !(0 != isHighWaterLevel_~tmp~6#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1140#L748-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1141#L754 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1142#L632 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1173#L620 assume { :end_inline_processEnvironment__wrappee__base } true; 1187#L628-1 assume { :end_inline_processEnvironment } true; 1240#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1243#L533-1 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 1156#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 1153#L910-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1154#L613 assume { :end_inline_timeShift } true; 1188#L430-2 [2021-12-19 19:09:30,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-19 19:09:30,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318126870] [2021-12-19 19:09:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,252 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:30,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash 806595375, now seen corresponding path program 1 times [2021-12-19 19:09:30,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076544880] [2021-12-19 19:09:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 19:09:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 19:09:30,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 19:09:30,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076544880] [2021-12-19 19:09:30,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076544880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 19:09:30,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 19:09:30,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 19:09:30,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745791317] [2021-12-19 19:09:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 19:09:30,295 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 19:09:30,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 19:09:30,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 19:09:30,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 19:09:30,296 INFO L87 Difference]: Start difference. First operand 165 states and 206 transitions. cyclomatic complexity: 43 Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 19:09:30,372 INFO L93 Difference]: Finished difference Result 363 states and 452 transitions. [2021-12-19 19:09:30,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 19:09:30,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 363 states and 452 transitions. [2021-12-19 19:09:30,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 264 [2021-12-19 19:09:30,378 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 363 states to 363 states and 452 transitions. [2021-12-19 19:09:30,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 363 [2021-12-19 19:09:30,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 363 [2021-12-19 19:09:30,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 363 states and 452 transitions. [2021-12-19 19:09:30,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 19:09:30,380 INFO L681 BuchiCegarLoop]: Abstraction has 363 states and 452 transitions. [2021-12-19 19:09:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states and 452 transitions. [2021-12-19 19:09:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 174. [2021-12-19 19:09:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.235632183908046) internal successors, (215), 173 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 19:09:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 215 transitions. [2021-12-19 19:09:30,387 INFO L704 BuchiCegarLoop]: Abstraction has 174 states and 215 transitions. [2021-12-19 19:09:30,387 INFO L587 BuchiCegarLoop]: Abstraction has 174 states and 215 transitions. [2021-12-19 19:09:30,388 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 19:09:30,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 215 transitions. [2021-12-19 19:09:30,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-12-19 19:09:30,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 19:09:30,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 19:09:30,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 19:09:30,389 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, 1, 1, 1] [2021-12-19 19:09:30,389 INFO L791 eck$LassoCheckResult]: Stem: 1800#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1735#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1724#L880 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1725#L873 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1709#L888 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1710#L844 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1769#L818 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1775#L430-2 [2021-12-19 19:09:30,390 INFO L793 eck$LassoCheckResult]: Loop: 1775#L430-2 assume !false; 1818#L431 assume test_~splverifierCounter~0#1 < 4; 1782#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1783#L440 assume !(0 != test_~tmp~3#1); 1774#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1789#L450 assume !(0 != test_~tmp___0~0#1); 1707#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1708#L460 assume 0 != test_~tmp___2~0#1; 1762#L466-2 assume { :begin_inline_timeShift } true; 1742#L596 assume !(0 != ~pumpRunning~0); 1743#L596-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1747#L628 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1748#L573 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1750#L578 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 1811#L748 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1682#L748-2 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1683#L754 processEnvironment_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret36#1;havoc processEnvironment_#t~ret36#1; 1684#L632 assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1752#L620 assume { :end_inline_processEnvironment__wrappee__base } true; 1753#L628-1 assume { :end_inline_processEnvironment } true; 1825#L603-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret50#1, __utac_acc__Specification1_spec__1_#t~ret51#1, __utac_acc__Specification1_spec__1_~tmp~8#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~8#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1824#L533-1 __utac_acc__Specification1_spec__1_#t~ret50#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~8#1 := __utac_acc__Specification1_spec__1_#t~ret50#1;havoc __utac_acc__Specification1_spec__1_#t~ret50#1; 1821#L910 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8#1); 1820#L910-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1819#L613 assume { :end_inline_timeShift } true; 1775#L430-2 [2021-12-19 19:09:30,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2021-12-19 19:09:30,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853732490] [2021-12-19 19:09:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,397 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,405 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:30,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash 692336811, now seen corresponding path program 1 times [2021-12-19 19:09:30,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921280852] [2021-12-19 19:09:30,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,411 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,416 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 19:09:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -558667929, now seen corresponding path program 1 times [2021-12-19 19:09:30,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 19:09:30,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052403095] [2021-12-19 19:09:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 19:09:30,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 19:09:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,432 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 19:09:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 19:09:30,442 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 19:09:32,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 07:09:32 BoogieIcfgContainer [2021-12-19 19:09:32,710 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 19:09:32,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 19:09:32,710 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 19:09:32,711 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 19:09:32,711 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:09:29" (3/4) ... [2021-12-19 19:09:32,712 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-19 19:09:32,750 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-19 19:09:32,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 19:09:32,751 INFO L158 Benchmark]: Toolchain (without parser) took 5020.99ms. Allocated memory was 92.3MB in the beginning and 228.6MB in the end (delta: 136.3MB). Free memory was 60.9MB in the beginning and 117.0MB in the end (delta: -56.1MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,751 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 19:09:32,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.62ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 60.6MB in the beginning and 96.2MB in the end (delta: -35.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.16ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,752 INFO L158 Benchmark]: Boogie Preprocessor took 48.79ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,752 INFO L158 Benchmark]: RCFGBuilder took 627.23ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 73.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,752 INFO L158 Benchmark]: BuchiAutomizer took 3619.22ms. Allocated memory was 127.9MB in the beginning and 228.6MB in the end (delta: 100.7MB). Free memory was 73.2MB in the beginning and 120.1MB in the end (delta: -46.9MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,753 INFO L158 Benchmark]: Witness Printer took 39.84ms. Allocated memory is still 228.6MB. Free memory was 120.1MB in the beginning and 117.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 19:09:32,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.62ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 60.6MB in the beginning and 96.2MB in the end (delta: -35.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.16ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.79ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.23ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 73.2MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3619.22ms. Allocated memory was 127.9MB in the beginning and 228.6MB in the end (delta: 100.7MB). Free memory was 73.2MB in the beginning and 120.1MB in the end (delta: -46.9MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. * Witness Printer took 39.84ms. Allocated memory is still 228.6MB. Free memory was 120.1MB in the beginning and 117.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 174 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 475 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 174 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1387 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1387 mSDsluCounter, 1595 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 874 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 721 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 430]: 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@bd20349=0, NULL=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d4d6a51=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b5e9902=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=1, \result=1, \result=1, retValue_acc=0, retValue_acc=0, tmp=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@591b9e0d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@626fb2c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@701620e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70f2fca9=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@487fd0c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@620942ac=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int waterLevel = 1; [L491] int methaneLevelCritical = 0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L759] int cleanupTimeShifts = 4; [L835] int retValue_acc ; [L836] int tmp ; [L840] FCALL select_helpers() [L841] FCALL select_features() [L842] CALL, EXPR valid_product() [L884] int retValue_acc ; [L887] retValue_acc = 1 [L888] return (retValue_acc); [L842] RET, EXPR valid_product() [L842] tmp = valid_product() [L844] COND TRUE \read(tmp) [L846] FCALL setup() [L847] CALL runTest() [L826] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L473] CALL timeShift() [L596] COND FALSE !(\read(pumpRunning)) [L603] COND TRUE \read(systemActive) [L605] CALL processEnvironment() [L625] int tmp ; [L628] COND TRUE ! pumpRunning [L630] CALL, EXPR isHighWaterLevel() [L740] int retValue_acc ; [L741] int tmp ; [L742] int tmp___0 ; [L746] CALL, EXPR isHighWaterSensorDry() [L570] int retValue_acc ; [L573] COND TRUE waterLevel < 2 [L574] retValue_acc = 1 [L575] return (retValue_acc); [L746] RET, EXPR isHighWaterSensorDry() [L746] tmp = isHighWaterSensorDry() [L748] COND TRUE \read(tmp) [L749] tmp___0 = 0 [L753] retValue_acc = tmp___0 [L754] return (retValue_acc); [L630] RET, EXPR isHighWaterLevel() [L630] tmp = isHighWaterLevel() [L632] COND FALSE !(\read(tmp)) [L638] FCALL processEnvironment__wrappee__base() [L605] RET processEnvironment() [L611] CALL __utac_acc__Specification1_spec__1() [L903] int tmp ; [L904] int tmp___0 ; [L908] CALL, EXPR isMethaneLevelCritical() [L529] int retValue_acc ; [L532] retValue_acc = methaneLevelCritical [L533] return (retValue_acc); [L908] RET, EXPR isMethaneLevelCritical() [L908] tmp = isMethaneLevelCritical() [L910] COND FALSE !(\read(tmp)) [L611] RET __utac_acc__Specification1_spec__1() [L473] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-19 19:09:32,784 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)