./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1532eb84511f08efccba1f71db5d8156ba5c802 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:59:28,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:59:28,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:59:29,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:59:29,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:59:29,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:59:29,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:59:29,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:59:29,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:59:29,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:59:29,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:59:29,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:59:29,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:59:29,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:59:29,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:59:29,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:59:29,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:59:29,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:59:29,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:59:29,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:59:29,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:59:29,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:59:29,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:59:29,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:59:29,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:59:29,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:59:29,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:59:29,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:59:29,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:59:29,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:59:29,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:59:29,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:59:29,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:59:29,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:59:29,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:59:29,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:59:29,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:59:29,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:59:29,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:59:29,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:59:29,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:59:29,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:59:29,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:59:29,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:59:29,119 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:59:29,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:59:29,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:59:29,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:59:29,122 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:59:29,122 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:59:29,122 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:59:29,122 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:59:29,123 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:59:29,123 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:59:29,124 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:59:29,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:59:29,124 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:59:29,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:59:29,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:59:29,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:59:29,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:59:29,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:59:29,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:59:29,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:59:29,126 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:59:29,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:59:29,126 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:59:29,126 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:59:29,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:59:29,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:59:29,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:59:29,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:59:29,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:59:29,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:59:29,129 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:59:29,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1532eb84511f08efccba1f71db5d8156ba5c802 [2021-08-27 15:59:29,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:59:29,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:59:29,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:59:29,449 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:59:29,449 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:59:29,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-08-27 15:59:29,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c374c2/a4220fa24727403580bda83c06d7378c/FLAG5ce87f27c [2021-08-27 15:59:30,050 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:59:30,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-08-27 15:59:30,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c374c2/a4220fa24727403580bda83c06d7378c/FLAG5ce87f27c [2021-08-27 15:59:30,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80c374c2/a4220fa24727403580bda83c06d7378c [2021-08-27 15:59:30,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:59:30,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:59:30,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:59:30,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:59:30,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:59:30,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:30,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540c4fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30, skipping insertion in model container [2021-08-27 15:59:30,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:30,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:59:30,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:59:30,738 WARN L228 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_productSimulator.cil.c[19893,19906] [2021-08-27 15:59:30,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:59:30,766 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:59:30,855 WARN L228 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_productSimulator.cil.c[19893,19906] [2021-08-27 15:59:30,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:59:30,887 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:59:30,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30 WrapperNode [2021-08-27 15:59:30,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:59:30,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:59:30,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:59:30,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:59:30,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:30,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:59:31,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:59:31,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:59:31,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:59:31,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:59:31,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:59:31,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:59:31,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:59:31,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (1/1) ... [2021-08-27 15:59:31,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:59:31,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:59:31,182 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) [2021-08-27 15:59:31,198 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 [2021-08-27 15:59:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:59:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:59:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:59:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:59:32,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:59:32,481 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-08-27 15:59:32,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:59:32 BoogieIcfgContainer [2021-08-27 15:59:32,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:59:32,485 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:59:32,485 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:59:32,488 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:59:32,489 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:59:32,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:59:30" (1/3) ... [2021-08-27 15:59:32,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed1328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:59:32, skipping insertion in model container [2021-08-27 15:59:32,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:59:32,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:30" (2/3) ... [2021-08-27 15:59:32,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ed1328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:59:32, skipping insertion in model container [2021-08-27 15:59:32,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:59:32,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:59:32" (3/3) ... [2021-08-27 15:59:32,492 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2021-08-27 15:59:32,534 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:59:32,534 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:59:32,534 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:59:32,535 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:59:32,535 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:59:32,535 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:59:32,535 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:59:32,535 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:59:32,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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) [2021-08-27 15:59:32,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-08-27 15:59:32,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:59:32,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:59:32,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:32,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:32,611 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:59:32,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 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) [2021-08-27 15:59:32,625 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 305 [2021-08-27 15:59:32,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:59:32,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:59:32,627 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:32,627 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:32,631 INFO L791 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(13);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string81.base, #t~string81.offset, 1);call write~init~int(77, #t~string81.base, 1 + #t~string81.offset, 1);call write~init~int(101, #t~string81.base, 2 + #t~string81.offset, 1);call write~init~int(116, #t~string81.base, 3 + #t~string81.offset, 1);call write~init~int(104, #t~string81.base, 4 + #t~string81.offset, 1);call write~init~int(58, #t~string81.base, 5 + #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 6 + #t~string81.offset, 1);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string83.base, #t~string83.offset, 1);call write~init~int(82, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(73, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(84, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 4 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string85.base, #t~string85.offset, 1);call write~init~int(75, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 2 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string87.base, #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 1 + #t~string87.offset, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 382#L-1true havoc main_#res;havoc main_#t~ret88, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 17#L875true havoc select_features_#t~ret70, select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 95#L850true select_features_#t~ret70 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret70;havoc select_features_#t~ret70;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 144#L850-1true select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 468#L850-2true select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 404#L850-3true select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 345#L850-4true select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 50#L850-5true select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75; 209#L867true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~8; 378#L883true main_#t~ret88 := valid_product_#res;main_~tmp~11 := main_#t~ret88;havoc main_#t~ret88; 395#L1110true assume 0 != main_~tmp~11; 106#L1087true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 326#L897-1true [2021-08-27 15:59:32,632 INFO L793 eck$LassoCheckResult]: Loop: 326#L897-1true assume !false; 220#L67true assume test_~splverifierCounter~0 < 4; 222#L68true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 298#L76true assume !(0 != test_~tmp~0); 451#L76-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 354#L86true assume !(0 != test_~tmp___0~0); 306#L86-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 211#L96true assume 0 != test_~tmp___2~0; 409#L97true assume 0 != ~__SELECTED_FEATURE_startCommand~0;~systemActive~0 := 1; 419#L108-1true assume !(0 != ~pumpRunning~0); 194#L150true assume !(0 != ~systemActive~0); 8#L157true havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~10, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~10;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 218#L959-10true __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~10 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 357#L897true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~10); 326#L897-1true [2021-08-27 15:59:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:59:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 1 times [2021-08-27 15:59:32,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:59:32,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527654348] [2021-08-27 15:59:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:59:32,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:59:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:32,900 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:59:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:59:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:59:33,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1157828185, now seen corresponding path program 1 times [2021-08-27 15:59:33,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:59:33,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042395906] [2021-08-27 15:59:33,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:59:33,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:59:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:59:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:59:33,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:59:33,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042395906] [2021-08-27 15:59:33,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042395906] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:59:33,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:59:33,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:59:33,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236866973] [2021-08-27 15:59:33,146 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:59:33,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:59:33,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:59:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:59:33,169 INFO L87 Difference]: Start difference. First operand has 467 states, 466 states have (on average 1.5686695278969958) internal successors, (731), 466 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-08-27 15:59:33,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:59:33,258 INFO L93 Difference]: Finished difference Result 921 states and 1431 transitions. [2021-08-27 15:59:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:59:33,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 921 states and 1431 transitions. [2021-08-27 15:59:33,278 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 606 [2021-08-27 15:59:33,292 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 921 states to 907 states and 1416 transitions. [2021-08-27 15:59:33,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 907 [2021-08-27 15:59:33,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 907 [2021-08-27 15:59:33,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 907 states and 1416 transitions. [2021-08-27 15:59:33,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:59:33,304 INFO L681 BuchiCegarLoop]: Abstraction has 907 states and 1416 transitions. [2021-08-27 15:59:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states and 1416 transitions. [2021-08-27 15:59:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 905. [2021-08-27 15:59:33,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 905 states have (on average 1.5613259668508288) internal successors, (1413), 904 states have internal predecessors, (1413), 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) [2021-08-27 15:59:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1413 transitions. [2021-08-27 15:59:33,367 INFO L704 BuchiCegarLoop]: Abstraction has 905 states and 1413 transitions. [2021-08-27 15:59:33,367 INFO L587 BuchiCegarLoop]: Abstraction has 905 states and 1413 transitions. [2021-08-27 15:59:33,367 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:59:33,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 905 states and 1413 transitions. [2021-08-27 15:59:33,380 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 604 [2021-08-27 15:59:33,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:59:33,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:59:33,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:33,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:59:33,382 INFO L791 eck$LassoCheckResult]: Stem: 1923#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(13);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string23.base, #t~string23.offset, 1);call write~init~int(80, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(117, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(109, #t~string23.base, 3 + #t~string23.offset, 1);call write~init~int(112, #t~string23.base, 4 + #t~string23.offset, 1);call write~init~int(58, #t~string23.base, 5 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 6 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string29.base, #t~string29.offset, 1);call write~init~int(32, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string31.base, #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 1 + #t~string31.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(13);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string81.base, #t~string81.offset, 1);call write~init~int(77, #t~string81.base, 1 + #t~string81.offset, 1);call write~init~int(101, #t~string81.base, 2 + #t~string81.offset, 1);call write~init~int(116, #t~string81.base, 3 + #t~string81.offset, 1);call write~init~int(104, #t~string81.base, 4 + #t~string81.offset, 1);call write~init~int(58, #t~string81.base, 5 + #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 6 + #t~string81.offset, 1);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string83.base, #t~string83.offset, 1);call write~init~int(82, #t~string83.base, 1 + #t~string83.offset, 1);call write~init~int(73, #t~string83.base, 2 + #t~string83.offset, 1);call write~init~int(84, #t~string83.base, 3 + #t~string83.offset, 1);call write~init~int(0, #t~string83.base, 4 + #t~string83.offset, 1);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string85.base, #t~string85.offset, 1);call write~init~int(75, #t~string85.base, 1 + #t~string85.offset, 1);call write~init~int(0, #t~string85.base, 2 + #t~string85.offset, 1);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string87.base, #t~string87.offset, 1);call write~init~int(0, #t~string87.base, 1 + #t~string87.offset, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1890#L-1 havoc main_#res;havoc main_#t~ret88, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 1426#L875 havoc select_features_#t~ret70, select_features_#t~ret71, select_features_#t~ret72, select_features_#t~ret73, select_features_#t~ret74, select_features_#t~ret75;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1427#L850 select_features_#t~ret70 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret70;havoc select_features_#t~ret70;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1561#L850-1 select_features_#t~ret71 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret71;havoc select_features_#t~ret71;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1637#L850-2 select_features_#t~ret72 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret72;havoc select_features_#t~ret72;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1899#L850-3 select_features_#t~ret73 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret73;havoc select_features_#t~ret73;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1863#L850-4 select_features_#t~ret74 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret74;havoc select_features_#t~ret74;havoc select_one_#res;havoc select_one_#t~nondet69, select_one_~retValue_acc~7, select_one_~choice~0;havoc select_one_~retValue_acc~7;select_one_~choice~0 := select_one_#t~nondet69;havoc select_one_#t~nondet69;select_one_~retValue_acc~7 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~7; 1487#L850-5 select_features_#t~ret75 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret75;havoc select_features_#t~ret75; 1488#L867 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~8; 1730#L883 main_#t~ret88 := valid_product_#res;main_~tmp~11 := main_#t~ret88;havoc main_#t~ret88; 1887#L1110 assume 0 != main_~tmp~11; 1579#L1087 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1580#L897-1 [2021-08-27 15:59:33,382 INFO L793 eck$LassoCheckResult]: Loop: 1580#L897-1 assume !false; 2065#L67 assume test_~splverifierCounter~0 < 4; 2066#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 2140#L76 assume !(0 != test_~tmp~0); 2138#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 2137#L86 assume !(0 != test_~tmp___0~0); 2135#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 2134#L96 assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet10;havoc test_#t~nondet10; 2132#L108 assume !(0 != test_~tmp___1~0); 1903#L108-1 assume !(0 != ~pumpRunning~0); 2129#L150 assume 0 != ~systemActive~0; 2127#L293 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2125#L250-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2121#L207-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 2071#L157 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~10, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~10;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 2070#L959-10 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~10 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 2068#L897 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~10); 1580#L897-1 [2021-08-27 15:59:33,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:59:33,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1125405515, now seen corresponding path program 2 times [2021-08-27 15:59:33,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:59:33,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015030805] [2021-08-27 15:59:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:59:33,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:59:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,419 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:59:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:59:33,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:59:33,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1493625367, now seen corresponding path program 1 times [2021-08-27 15:59:33,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:59:33,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413994774] [2021-08-27 15:59:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:59:33,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:59:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,488 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:59:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:59:33,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:59:33,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1931444257, now seen corresponding path program 1 times [2021-08-27 15:59:33,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:59:33,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840983189] [2021-08-27 15:59:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:59:33,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:59:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,557 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:59:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:59:33,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:00:20,799 WARN L207 SmtUtils]: Spent 46.97 s on a formula simplification. DAG size of input: 553 DAG size of output: 495 [2021-08-27 16:01:05,424 WARN L207 SmtUtils]: Spent 21.91 s on a formula simplification that was a NOOP. DAG size: 444 [2021-08-27 16:01:05,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:01:05 BoogieIcfgContainer [2021-08-27 16:01:05,549 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:01:05,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:01:05,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:01:05,550 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:01:05,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:59:32" (3/4) ... [2021-08-27 16:01:05,553 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:01:05,612 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:01:05,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:01:05,614 INFO L168 Benchmark]: Toolchain (without parser) took 95242.74 ms. Allocated memory was 56.6 MB in the beginning and 117.4 MB in the end (delta: 60.8 MB). Free memory was 40.3 MB in the beginning and 81.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 79.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,614 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 46.1 MB. Free memory was 28.4 MB in the beginning and 28.3 MB in the end (delta: 51.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:01:05,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.18 ms. Allocated memory is still 56.6 MB. Free memory was 40.0 MB in the beginning and 31.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.11 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 31.6 MB in the end (delta: 37.4 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,617 INFO L168 Benchmark]: Boogie Preprocessor took 131.43 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 34.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,618 INFO L168 Benchmark]: RCFGBuilder took 1327.16 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 34.2 MB in the beginning and 55.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,618 INFO L168 Benchmark]: BuchiAutomizer took 93064.15 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 25.9 MB in the end (delta: 29.7 MB). Peak memory consumption was 67.3 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,618 INFO L168 Benchmark]: Witness Printer took 62.64 ms. Allocated memory is still 117.4 MB. Free memory was 25.9 MB in the beginning and 81.2 MB in the end (delta: -55.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:01:05,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 46.1 MB. Free memory was 28.4 MB in the beginning and 28.3 MB in the end (delta: 51.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.18 ms. Allocated memory is still 56.6 MB. Free memory was 40.0 MB in the beginning and 31.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 135.11 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 31.6 MB in the end (delta: 37.4 kB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 131.43 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 34.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1327.16 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 34.2 MB in the beginning and 55.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 38.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 93064.15 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.6 MB in the beginning and 25.9 MB in the end (delta: 29.7 MB). Peak memory consumption was 67.3 MB. Max. memory is 16.1 GB. * Witness Printer took 62.64 ms. Allocated memory is still 117.4 MB. Free memory was 25.9 MB in the beginning and 81.2 MB in the end (delta: -55.3 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 905 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 92.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 92.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 51.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 905 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 728 SDtfs, 717 SDslu, 702 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3471} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a6d6c17=0, NULL=0, NULL=0, NULL=3501, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50b545b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3712f37a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24ed419b=0, NULL=3471, NULL=0, NULL=0, NULL=3473, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea3d474=0, NULL=3481, tmp___1=0, NULL=3497, NULL=0, cleanupTimeShifts=4, tmp=0, tmp=1, NULL=3499, NULL=0, NULL=0, waterLevel=1, __SELECTED_FEATURE_methaneAlarm=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=3491, NULL=3479, NULL=0, __SELECTED_FEATURE_stopCommand=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32e76c58=0, NULL=3486, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7517c86e=0, head=0, NULL=3487, NULL=0, NULL=3478, choice=52, NULL=0, \result=52, __SELECTED_FEATURE_base=1, NULL=3476, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28affd4d=0, NULL=3490, NULL=0, NULL=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@292f8780=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bda7b53=0, NULL=3492, NULL=3494, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ad44288=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cc41454=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7894c671=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e0ff85c=0, NULL=3488, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=3475, retValue_acc=0, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=3493, retValue_acc=0, retValue_acc=52, \result=0, NULL=3477, NULL=3500, NULL=0, NULL=3482, __SELECTED_FEATURE_highWaterSensor=0, NULL=0, retValue_acc=1, NULL=3483, NULL=3474, __SELECTED_FEATURE_methaneQuery=0, NULL=3495, tmp___2=0, splverifierCounter=0, NULL=0, \result=0, NULL=3496, NULL=3489, __SELECTED_FEATURE_startCommand=52, NULL=3498, NULL=3480, NULL=3472} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L1028] int cleanupTimeShifts = 4; [L1101] int retValue_acc ; [L1102] int tmp ; [L874] __GUIDSL_ROOT_PRODUCTION = 1 [L859] __SELECTED_FEATURE_base = 1 [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L860] __SELECTED_FEATURE_highWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L861] __SELECTED_FEATURE_lowWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L862] __SELECTED_FEATURE_methaneQuery = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L863] __SELECTED_FEATURE_methaneAlarm = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L864] __SELECTED_FEATURE_stopCommand = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); [L865] __SELECTED_FEATURE_startCommand = select_one() [L879] int retValue_acc ; [L882] retValue_acc = __SELECTED_FEATURE_base [L883] return (retValue_acc); [L1108] tmp = valid_product() [L1110] COND TRUE \read(tmp) [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L106] tmp___1 = __VERIFIER_nondet_int() [L108] COND FALSE !(\read(tmp___1)) [L150] COND FALSE !(\read(pumpRunning)) [L157] COND TRUE \read(systemActive) [L293] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L250] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L207] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L890] int tmp ; [L891] int tmp___0 ; [L955] int retValue_acc ; [L958] retValue_acc = methaneLevelCritical [L959] return (retValue_acc); [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:01:05,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...