./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product35.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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:40:40,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:40:40,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:40:40,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:40:40,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:40:40,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:40:40,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:40:40,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:40:40,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:40:40,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:40:40,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:40:40,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:40:40,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:40:40,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:40:40,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:40:40,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:40:40,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:40:40,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:40:40,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:40:40,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:40:40,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:40:40,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:40:40,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:40:40,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:40:40,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:40:40,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:40:40,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:40:40,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:40:40,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:40:40,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:40:40,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:40:40,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:40:40,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:40:40,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:40:40,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:40:40,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:40:40,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:40:40,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:40:40,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:40:40,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:40:40,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:40:40,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:40:40,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:40:40,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:40:40,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:40:40,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:40:40,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:40:40,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:40:40,984 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:40:40,984 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:40:40,984 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:40:40,984 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:40:40,985 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:40:40,985 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:40:40,986 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:40:40,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:40:40,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:40:40,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:40:40,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:40:40,988 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:40:40,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:40:40,997 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:40:40,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:40:40,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:40:40,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:40:40,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:40:40,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:40:40,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:40:40,999 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:40:41,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-12-28 09:40:41,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:40:41,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:40:41,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:40:41,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:40:41,330 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:40:41,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-12-28 09:40:41,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7e438d7/1e1b1999fd6f452c8699413b0521ee80/FLAG7ed15a7ff [2021-12-28 09:40:41,932 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:40:41,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-12-28 09:40:41,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7e438d7/1e1b1999fd6f452c8699413b0521ee80/FLAG7ed15a7ff [2021-12-28 09:40:42,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df7e438d7/1e1b1999fd6f452c8699413b0521ee80 [2021-12-28 09:40:42,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:40:42,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:40:42,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:42,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:40:42,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:40:42,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4d76d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42, skipping insertion in model container [2021-12-28 09:40:42,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:40:42,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:40:42,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-12-28 09:40:42,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:42,595 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:40:42,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-12-28 09:40:42,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:40:42,712 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:40:42,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42 WrapperNode [2021-12-28 09:40:42,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:40:42,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:42,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:40:42,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:40:42,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,801 INFO L137 Inliner]: procedures = 53, calls = 152, calls flagged for inlining = 49, calls inlined = 52, statements flattened = 429 [2021-12-28 09:40:42,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:40:42,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:40:42,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:40:42,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:40:42,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:40:42,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:40:42,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:40:42,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:40:42,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (1/1) ... [2021-12-28 09:40:42,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:40:42,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:40:42,889 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) [2021-12-28 09:40:42,901 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 [2021-12-28 09:40:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:40:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:40:42,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:40:42,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:40:43,047 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:40:43,048 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:40:43,449 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:40:43,457 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:40:43,459 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 09:40:43,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:43 BoogieIcfgContainer [2021-12-28 09:40:43,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:40:43,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:40:43,465 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:40:43,467 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:40:43,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:43,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:40:42" (1/3) ... [2021-12-28 09:40:43,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b996af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:43, skipping insertion in model container [2021-12-28 09:40:43,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:43,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:40:42" (2/3) ... [2021-12-28 09:40:43,471 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79b996af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:40:43, skipping insertion in model container [2021-12-28 09:40:43,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:40:43,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:43" (3/3) ... [2021-12-28 09:40:43,473 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-12-28 09:40:43,526 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:40:43,526 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:40:43,526 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:40:43,527 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:40:43,527 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:40:43,527 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:40:43,527 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:40:43,527 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:40:43,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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) [2021-12-28 09:40:43,577 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-12-28 09:40:43,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:43,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:43,584 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:43,584 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:43,584 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:40:43,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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) [2021-12-28 09:40:43,599 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 74 [2021-12-28 09:40:43,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:43,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:43,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:43,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:43,610 INFO L791 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 47#L549true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 12#L542true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 112#L557true main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 6#L419true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 19#L393true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 33#L65-2true [2021-12-28 09:40:43,611 INFO L793 eck$LassoCheckResult]: Loop: 33#L65-2true assume !false; 30#L66true assume test_~splverifierCounter~0#1 < 4; 107#L67true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 63#L75true assume !(0 != test_~tmp~0#1); 105#L75-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 32#L85true assume !(0 != test_~tmp___0~0#1); 7#L85-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 86#L95true assume 0 != test_~tmp___2~0#1; 83#L101-2true assume { :begin_inline_timeShift } true; 65#L138true assume !(0 != ~pumpRunning~0); 88#L138-2true assume !(0 != ~systemActive~0); 70#L145-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 38#L476true __utac_acc__Specification3_spec__1_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret19#1;havoc __utac_acc__Specification3_spec__1_#t~ret19#1; 80#L309true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 106#L315-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 48#L155true assume { :end_inline_timeShift } true; 33#L65-2true [2021-12-28 09:40:43,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-28 09:40:43,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:43,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095876763] [2021-12-28 09:40:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:43,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:43,752 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:43,792 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1486881002, now seen corresponding path program 1 times [2021-12-28 09:40:43,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:43,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150069766] [2021-12-28 09:40:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:43,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:43,821 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:43,835 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:43,841 INFO L85 PathProgramCache]: Analyzing trace with hash -131461926, now seen corresponding path program 1 times [2021-12-28 09:40:43,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:43,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557278552] [2021-12-28 09:40:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:43,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:44,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:44,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557278552] [2021-12-28 09:40:44,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557278552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:44,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:44,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 09:40:44,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40617048] [2021-12-28 09:40:44,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:44,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:44,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 09:40:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 09:40:44,185 INFO L87 Difference]: Start difference. First operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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) [2021-12-28 09:40:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:44,326 INFO L93 Difference]: Finished difference Result 287 states and 374 transitions. [2021-12-28 09:40:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 09:40:44,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 374 transitions. [2021-12-28 09:40:44,337 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 183 [2021-12-28 09:40:44,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 257 states and 344 transitions. [2021-12-28 09:40:44,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2021-12-28 09:40:44,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2021-12-28 09:40:44,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 344 transitions. [2021-12-28 09:40:44,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:44,355 INFO L681 BuchiCegarLoop]: Abstraction has 257 states and 344 transitions. [2021-12-28 09:40:44,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 344 transitions. [2021-12-28 09:40:44,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 160. [2021-12-28 09:40:44,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.3375) internal successors, (214), 159 states have internal predecessors, (214), 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) [2021-12-28 09:40:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 214 transitions. [2021-12-28 09:40:44,406 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 214 transitions. [2021-12-28 09:40:44,406 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 214 transitions. [2021-12-28 09:40:44,406 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:40:44,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 214 transitions. [2021-12-28 09:40:44,409 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-12-28 09:40:44,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:44,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:44,411 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:44,411 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] [2021-12-28 09:40:44,411 INFO L791 eck$LassoCheckResult]: Stem: 521#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 475#L549 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 437#L542 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 438#L557 main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 424#L419 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 425#L393 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 448#L65-2 [2021-12-28 09:40:44,411 INFO L793 eck$LassoCheckResult]: Loop: 448#L65-2 assume !false; 467#L66 assume test_~splverifierCounter~0#1 < 4; 468#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 500#L75 assume !(0 != test_~tmp~0#1); 502#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 470#L85 assume !(0 != test_~tmp___0~0#1); 426#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 427#L95 assume 0 != test_~tmp___2~0#1; 514#L101-2 assume { :begin_inline_timeShift } true; 503#L138 assume !(0 != ~pumpRunning~0); 499#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 506#L170 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 488#L162-1 assume { :end_inline_processEnvironment__wrappee__base } true; 464#L170-1 assume { :end_inline_processEnvironment } true; 493#L145-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 479#L476 __utac_acc__Specification3_spec__1_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret19#1;havoc __utac_acc__Specification3_spec__1_#t~ret19#1; 480#L309 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 482#L315-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 489#L155 assume { :end_inline_timeShift } true; 448#L65-2 [2021-12-28 09:40:44,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-28 09:40:44,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:44,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225355701] [2021-12-28 09:40:44,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:44,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,439 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,456 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:44,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash 101399904, now seen corresponding path program 1 times [2021-12-28 09:40:44,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:44,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910575349] [2021-12-28 09:40:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:44,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:44,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:44,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910575349] [2021-12-28 09:40:44,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910575349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:44,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:44,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 09:40:44,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316494232] [2021-12-28 09:40:44,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:44,475 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-28 09:40:44,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:44,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 09:40:44,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 09:40:44,481 INFO L87 Difference]: Start difference. First operand 160 states and 214 transitions. cyclomatic complexity: 57 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) [2021-12-28 09:40:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:44,536 INFO L93 Difference]: Finished difference Result 213 states and 274 transitions. [2021-12-28 09:40:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 09:40:44,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 213 states and 274 transitions. [2021-12-28 09:40:44,539 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-12-28 09:40:44,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 213 states to 213 states and 274 transitions. [2021-12-28 09:40:44,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 213 [2021-12-28 09:40:44,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 213 [2021-12-28 09:40:44,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 213 states and 274 transitions. [2021-12-28 09:40:44,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:44,543 INFO L681 BuchiCegarLoop]: Abstraction has 213 states and 274 transitions. [2021-12-28 09:40:44,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states and 274 transitions. [2021-12-28 09:40:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2021-12-28 09:40:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 213 states have (on average 1.2863849765258215) internal successors, (274), 212 states have internal predecessors, (274), 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) [2021-12-28 09:40:44,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 274 transitions. [2021-12-28 09:40:44,552 INFO L704 BuchiCegarLoop]: Abstraction has 213 states and 274 transitions. [2021-12-28 09:40:44,552 INFO L587 BuchiCegarLoop]: Abstraction has 213 states and 274 transitions. [2021-12-28 09:40:44,552 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-28 09:40:44,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 274 transitions. [2021-12-28 09:40:44,553 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-12-28 09:40:44,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:44,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:44,554 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:44,554 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] [2021-12-28 09:40:44,555 INFO L791 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 854#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 855#L549 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 816#L542 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 817#L557 main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 803#L419 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 804#L393 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 826#L65-2 [2021-12-28 09:40:44,555 INFO L793 eck$LassoCheckResult]: Loop: 826#L65-2 assume !false; 989#L66 assume test_~splverifierCounter~0#1 < 4; 925#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 926#L75 assume !(0 != test_~tmp~0#1); 924#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 849#L85 assume !(0 != test_~tmp___0~0#1); 805#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 806#L95 assume 0 != test_~tmp___2~0#1; 909#L101-2 assume { :begin_inline_timeShift } true; 996#L138 assume !(0 != ~pumpRunning~0); 911#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 896#L170 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 897#L516 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 901#L521 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 862#L272 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~1#1 := 0; 827#L272-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 828#L278 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 928#L174 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 842#L162 assume { :end_inline_processEnvironment__wrappee__base } true; 843#L170-1 assume { :end_inline_processEnvironment } true; 878#L145-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 995#L476 __utac_acc__Specification3_spec__1_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret19#1;havoc __utac_acc__Specification3_spec__1_#t~ret19#1; 992#L309 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 991#L315-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 990#L155 assume { :end_inline_timeShift } true; 826#L65-2 [2021-12-28 09:40:44,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:44,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-28 09:40:44,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:44,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284645189] [2021-12-28 09:40:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:44,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,569 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:44,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:44,592 INFO L85 PathProgramCache]: Analyzing trace with hash 477049864, now seen corresponding path program 1 times [2021-12-28 09:40:44,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:44,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472166968] [2021-12-28 09:40:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:44,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,598 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:44,618 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:44,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:44,620 INFO L85 PathProgramCache]: Analyzing trace with hash -773954876, now seen corresponding path program 1 times [2021-12-28 09:40:44,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:44,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341422902] [2021-12-28 09:40:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:44,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:40:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:40:44,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 09:40:44,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341422902] [2021-12-28 09:40:44,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341422902] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 09:40:44,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 09:40:44,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 09:40:44,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207261628] [2021-12-28 09:40:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 09:40:44,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 09:40:44,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 09:40:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 09:40:44,933 INFO L87 Difference]: Start difference. First operand 213 states and 274 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2021-12-28 09:40:45,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 09:40:45,004 INFO L93 Difference]: Finished difference Result 725 states and 927 transitions. [2021-12-28 09:40:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 09:40:45,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 725 states and 927 transitions. [2021-12-28 09:40:45,010 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 558 [2021-12-28 09:40:45,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 725 states to 725 states and 927 transitions. [2021-12-28 09:40:45,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 725 [2021-12-28 09:40:45,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 725 [2021-12-28 09:40:45,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 725 states and 927 transitions. [2021-12-28 09:40:45,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:40:45,019 INFO L681 BuchiCegarLoop]: Abstraction has 725 states and 927 transitions. [2021-12-28 09:40:45,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states and 927 transitions. [2021-12-28 09:40:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 419. [2021-12-28 09:40:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 419 states have (on average 1.2625298329355608) internal successors, (529), 418 states have internal predecessors, (529), 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) [2021-12-28 09:40:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 529 transitions. [2021-12-28 09:40:45,032 INFO L704 BuchiCegarLoop]: Abstraction has 419 states and 529 transitions. [2021-12-28 09:40:45,033 INFO L587 BuchiCegarLoop]: Abstraction has 419 states and 529 transitions. [2021-12-28 09:40:45,033 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-28 09:40:45,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 419 states and 529 transitions. [2021-12-28 09:40:45,035 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 310 [2021-12-28 09:40:45,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:40:45,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:40:45,036 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 09:40:45,036 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, 1, 1] [2021-12-28 09:40:45,036 INFO L791 eck$LassoCheckResult]: Stem: 1885#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1812#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret22#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1813#L549 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1772#L542 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1773#L557 main_#t~ret22#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret22#1;havoc main_#t~ret22#1; 1759#L419 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1760#L393 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1782#L65-2 [2021-12-28 09:40:45,037 INFO L793 eck$LassoCheckResult]: Loop: 1782#L65-2 assume !false; 2071#L66 assume test_~splverifierCounter~0#1 < 4; 2072#L67 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2139#L75 assume !(0 != test_~tmp~0#1); 2136#L75-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2134#L85 assume !(0 != test_~tmp___0~0#1); 2132#L85-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2126#L95 assume 0 != test_~tmp___2~0#1; 2102#L101-2 assume { :begin_inline_timeShift } true; 2155#L138 assume !(0 != ~pumpRunning~0); 1871#L138-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret8#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 1872#L170 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret18#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2070#L516 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2088#L521 isHighWaterLevel_#t~ret18#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret18#1;havoc isHighWaterLevel_#t~ret18#1; 2087#L272 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2086#L272-2 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2014#L278 processEnvironment_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~1#1 := processEnvironment_#t~ret8#1;havoc processEnvironment_#t~ret8#1; 1886#L174 assume !(0 != processEnvironment_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1887#L162 assume { :end_inline_processEnvironment__wrappee__base } true; 2082#L170-1 assume { :end_inline_processEnvironment } true; 2081#L145-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret19#1, __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2080#L476 __utac_acc__Specification3_spec__1_#t~ret19#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret19#1;havoc __utac_acc__Specification3_spec__1_#t~ret19#1; 2079#L309 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2078#L508 __utac_acc__Specification3_spec__1_#t~ret20#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1; 2075#L315 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2074#L315-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2073#L155 assume { :end_inline_timeShift } true; 1782#L65-2 [2021-12-28 09:40:45,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-28 09:40:45,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:45,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000490239] [2021-12-28 09:40:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:45,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:45,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:45,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1115329541, now seen corresponding path program 1 times [2021-12-28 09:40:45,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:45,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770074502] [2021-12-28 09:40:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:45,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,069 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:45,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:40:45,075 INFO L85 PathProgramCache]: Analyzing trace with hash -740041801, now seen corresponding path program 1 times [2021-12-28 09:40:45,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:40:45,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442770796] [2021-12-28 09:40:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:40:45,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:40:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,087 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:40:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:40:45,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:40:47,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:40:47 BoogieIcfgContainer [2021-12-28 09:40:47,920 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:40:47,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:40:47,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:40:47,921 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:40:47,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:40:43" (3/4) ... [2021-12-28 09:40:47,924 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-28 09:40:47,964 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 09:40:47,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:40:47,965 INFO L158 Benchmark]: Toolchain (without parser) took 5719.62ms. Allocated memory was 50.3MB in the beginning and 92.3MB in the end (delta: 41.9MB). Free memory was 26.5MB in the beginning and 25.0MB in the end (delta: 1.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,966 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory is still 32.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:47,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.61ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 38.3MB in the end (delta: -12.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,966 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.54ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 35.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:40:47,967 INFO L158 Benchmark]: Boogie Preprocessor took 49.78ms. Allocated memory is still 62.9MB. Free memory was 35.3MB in the beginning and 33.6MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,967 INFO L158 Benchmark]: RCFGBuilder took 606.64ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 30.5MB in the end (delta: 2.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,968 INFO L158 Benchmark]: BuchiAutomizer took 4457.12ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.2MB in the beginning and 28.0MB in the end (delta: 2.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,968 INFO L158 Benchmark]: Witness Printer took 43.69ms. Allocated memory is still 92.3MB. Free memory was 28.0MB in the beginning and 25.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:40:47,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory is still 32.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.61ms. Allocated memory was 50.3MB in the beginning and 62.9MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 38.3MB in the end (delta: -12.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.54ms. Allocated memory is still 62.9MB. Free memory was 38.3MB in the beginning and 35.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.78ms. Allocated memory is still 62.9MB. Free memory was 35.3MB in the beginning and 33.6MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 606.64ms. Allocated memory is still 62.9MB. Free memory was 33.3MB in the beginning and 30.5MB in the end (delta: 2.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 4457.12ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.2MB in the beginning and 28.0MB in the end (delta: 2.2MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Witness Printer took 43.69ms. Allocated memory is still 92.3MB. Free memory was 28.0MB in the beginning and 25.0MB in the end (delta: 3.0MB). 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 419 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 403 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 419 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1277 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1277 mSDsluCounter, 1895 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1393 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 502 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8befe4b=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23fbf0ab=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ea36c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c51846b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c02b1f6=29, methaneLevelCritical=0, retValue_acc=0, tmp=1, tmp___0=1, retValue_acc=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@542c9964=0, tmp=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75e6d423=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77a57c8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59678785=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e9e764a=0, tmp___2=29, tmp___1=0, tmp=1, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, \result=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 65]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L110] CALL timeShift() [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L147] CALL processEnvironment() [L167] int tmp ; [L170] COND TRUE ! pumpRunning [L172] CALL, EXPR isHighWaterLevel() [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L270] CALL, EXPR isHighWaterSensorDry() [L513] int retValue_acc ; [L516] COND TRUE waterLevel < 2 [L517] retValue_acc = 1 [L518] return (retValue_acc); [L270] RET, EXPR isHighWaterSensorDry() [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L172] RET, EXPR isHighWaterLevel() [L172] tmp = isHighWaterLevel() [L174] COND FALSE !(\read(tmp)) [L180] FCALL processEnvironment__wrappee__base() [L147] RET processEnvironment() [L153] CALL __utac_acc__Specification3_spec__1() [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; [L307] CALL, EXPR isMethaneLevelCritical() [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L307] RET, EXPR isMethaneLevelCritical() [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L313] CALL, EXPR getWaterLevel() [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] return (retValue_acc); [L313] RET, EXPR getWaterLevel() [L313] tmp___0 = getWaterLevel() [L315] COND FALSE !(tmp___0 == 2) [L153] RET __utac_acc__Specification3_spec__1() [L110] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-28 09:40:48,012 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)