./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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_product59.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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 04:18:20,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 04:18:20,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 04:18:20,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 04:18:20,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 04:18:20,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 04:18:20,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 04:18:20,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 04:18:20,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 04:18:20,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 04:18:20,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 04:18:20,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 04:18:20,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 04:18:20,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 04:18:20,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 04:18:20,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 04:18:20,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 04:18:20,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 04:18:20,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 04:18:20,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 04:18:20,910 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 04:18:20,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 04:18:20,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 04:18:20,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 04:18:20,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 04:18:20,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 04:18:20,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 04:18:20,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 04:18:20,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 04:18:20,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 04:18:20,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 04:18:20,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 04:18:20,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 04:18:20,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 04:18:20,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 04:18:20,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 04:18:20,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 04:18:20,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 04:18:20,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 04:18:20,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 04:18:20,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 04:18:20,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 04:18:20,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 04:18:20,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 04:18:20,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 04:18:20,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 04:18:20,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 04:18:20,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 04:18:20,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 04:18:20,992 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 04:18:20,992 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 04:18:20,993 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 04:18:20,993 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 04:18:20,993 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 04:18:20,993 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 04:18:20,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 04:18:20,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 04:18:20,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 04:18:20,994 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 04:18:20,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 04:18:20,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 04:18:20,995 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 04:18:20,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 04:18:20,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 04:18:20,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 04:18:20,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 04:18:20,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 04:18:20,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 04:18:20,997 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 04:18:21,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2022-07-13 04:18:21,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 04:18:21,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 04:18:21,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 04:18:21,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 04:18:21,285 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 04:18:21,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2022-07-13 04:18:21,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a03193cae/2afd6cae2fa7483f96f73f19b5220ba7/FLAG8bf0891d4 [2022-07-13 04:18:21,838 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 04:18:21,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2022-07-13 04:18:21,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a03193cae/2afd6cae2fa7483f96f73f19b5220ba7/FLAG8bf0891d4 [2022-07-13 04:18:22,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a03193cae/2afd6cae2fa7483f96f73f19b5220ba7 [2022-07-13 04:18:22,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 04:18:22,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 04:18:22,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 04:18:22,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 04:18:22,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 04:18:22,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407ba1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22, skipping insertion in model container [2022-07-13 04:18:22,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 04:18:22,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 04:18:22,615 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_product59.cil.c[15143,15156] [2022-07-13 04:18:22,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:18:22,650 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 04:18:22,721 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_product59.cil.c[15143,15156] [2022-07-13 04:18:22,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 04:18:22,745 INFO L208 MainTranslator]: Completed translation [2022-07-13 04:18:22,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22 WrapperNode [2022-07-13 04:18:22,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 04:18:22,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 04:18:22,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 04:18:22,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 04:18:22,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,831 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 100, statements flattened = 765 [2022-07-13 04:18:22,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 04:18:22,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 04:18:22,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 04:18:22,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 04:18:22,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 04:18:22,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 04:18:22,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 04:18:22,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 04:18:22,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (1/1) ... [2022-07-13 04:18:22,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 04:18:22,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 04:18:22,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 04:18:22,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 04:18:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 04:18:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 04:18:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 04:18:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 04:18:22,988 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 04:18:22,989 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 04:18:23,296 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 04:18:23,302 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 04:18:23,303 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 04:18:23,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:23 BoogieIcfgContainer [2022-07-13 04:18:23,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 04:18:23,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 04:18:23,306 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 04:18:23,308 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 04:18:23,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:23,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 04:18:22" (1/3) ... [2022-07-13 04:18:23,311 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79aed6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:18:23, skipping insertion in model container [2022-07-13 04:18:23,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:23,311 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 04:18:22" (2/3) ... [2022-07-13 04:18:23,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79aed6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 04:18:23, skipping insertion in model container [2022-07-13 04:18:23,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 04:18:23,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:23" (3/3) ... [2022-07-13 04:18:23,313 INFO L354 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2022-07-13 04:18:23,352 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 04:18:23,352 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 04:18:23,352 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 04:18:23,352 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 04:18:23,352 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 04:18:23,353 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 04:18:23,353 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 04:18:23,353 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 04:18:23,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:23,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2022-07-13 04:18:23,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:23,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:23,386 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:23,386 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:23,387 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 04:18:23,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:23,396 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 128 [2022-07-13 04:18:23,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:23,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:23,397 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:23,397 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:23,400 INFO L752 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 136#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 186#L651true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 180#L644true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 131#L659true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 115#L615true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 83#L588true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 184#L720-2true [2022-07-13 04:18:23,401 INFO L754 eck$LassoCheckResult]: Loop: 184#L720-2true assume !false; 76#L721true assume test_~splverifierCounter~0#1 < 4; 60#L722true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 55#L730true assume !(0 != test_~tmp~5#1); 144#L730-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 141#L740true assume !(0 != test_~tmp___0~1#1); 29#L740-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 178#L750true assume 0 != test_~tmp___2~0#1; 151#L756-2true assume { :begin_inline_timeShift } true; 12#L786true assume !(0 != ~pumpRunning~0); 139#L786-2true assume !(0 != ~systemActive~0); 25#L793-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 93#L467-2true __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 62#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 97#L681-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 17#L803true assume { :end_inline_timeShift } true; 184#L720-2true [2022-07-13 04:18:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-07-13 04:18:23,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:23,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566249938] [2022-07-13 04:18:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:23,503 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:23,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1086879670, now seen corresponding path program 1 times [2022-07-13 04:18:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:23,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495382685] [2022-07-13 04:18:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:23,584 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:23,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:23,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:23,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1852668550, now seen corresponding path program 1 times [2022-07-13 04:18:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:23,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289345294] [2022-07-13 04:18:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:23,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:23,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:23,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289345294] [2022-07-13 04:18:23,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289345294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:23,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:23,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 04:18:23,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466252143] [2022-07-13 04:18:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:23,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:23,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 04:18:23,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 04:18:23,884 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.3641025641025641) internal successors, (266), 195 states have internal predecessors, (266), 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) [2022-07-13 04:18:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:24,006 INFO L93 Difference]: Finished difference Result 449 states and 590 transitions. [2022-07-13 04:18:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 04:18:24,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 449 states and 590 transitions. [2022-07-13 04:18:24,019 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 291 [2022-07-13 04:18:24,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 449 states to 419 states and 560 transitions. [2022-07-13 04:18:24,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 419 [2022-07-13 04:18:24,035 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 419 [2022-07-13 04:18:24,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 419 states and 560 transitions. [2022-07-13 04:18:24,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:24,041 INFO L369 hiAutomatonCegarLoop]: Abstraction has 419 states and 560 transitions. [2022-07-13 04:18:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states and 560 transitions. [2022-07-13 04:18:24,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 241. [2022-07-13 04:18:24,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 241 states have (on average 1.3360995850622406) internal successors, (322), 240 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 322 transitions. [2022-07-13 04:18:24,083 INFO L392 hiAutomatonCegarLoop]: Abstraction has 241 states and 322 transitions. [2022-07-13 04:18:24,083 INFO L374 stractBuchiCegarLoop]: Abstraction has 241 states and 322 transitions. [2022-07-13 04:18:24,083 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 04:18:24,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 241 states and 322 transitions. [2022-07-13 04:18:24,088 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2022-07-13 04:18:24,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:24,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:24,089 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:24,090 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:24,090 INFO L752 eck$LassoCheckResult]: Stem: 846#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 772#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 773#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 845#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 754#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 683#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 684#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 723#L720-2 [2022-07-13 04:18:24,090 INFO L754 eck$LassoCheckResult]: Loop: 723#L720-2 assume !false; 831#L721 assume test_~splverifierCounter~0#1 < 4; 812#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 803#L730 assume !(0 != test_~tmp~5#1); 791#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 785#L740 assume !(0 != test_~tmp___0~1#1); 710#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 759#L750 assume 0 != test_~tmp___2~0#1; 808#L756-2 assume { :begin_inline_timeShift } true; 704#L786 assume !(0 != ~pumpRunning~0); 705#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 779#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 755#L818-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 756#L810-3 assume { :end_inline_processEnvironment__wrappee__base } true; 727#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 810#L844-1 assume { :end_inline_processEnvironment } true; 746#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 747#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 819#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 813#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 722#L803 assume { :end_inline_timeShift } true; 723#L720-2 [2022-07-13 04:18:24,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-07-13 04:18:24,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26483538] [2022-07-13 04:18:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,120 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1122641260, now seen corresponding path program 1 times [2022-07-13 04:18:24,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28824732] [2022-07-13 04:18:24,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28824732] [2022-07-13 04:18:24,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28824732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:24,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:24,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 04:18:24,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299706324] [2022-07-13 04:18:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:24,164 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 04:18:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 04:18:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 04:18:24,166 INFO L87 Difference]: Start difference. First operand 241 states and 322 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:24,226 INFO L93 Difference]: Finished difference Result 303 states and 388 transitions. [2022-07-13 04:18:24,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 04:18:24,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 303 states and 388 transitions. [2022-07-13 04:18:24,230 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2022-07-13 04:18:24,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 303 states to 303 states and 388 transitions. [2022-07-13 04:18:24,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 303 [2022-07-13 04:18:24,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 303 [2022-07-13 04:18:24,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 303 states and 388 transitions. [2022-07-13 04:18:24,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:24,233 INFO L369 hiAutomatonCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-07-13 04:18:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states and 388 transitions. [2022-07-13 04:18:24,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-07-13 04:18:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 303 states have (on average 1.2805280528052805) internal successors, (388), 302 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 388 transitions. [2022-07-13 04:18:24,245 INFO L392 hiAutomatonCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-07-13 04:18:24,245 INFO L374 stractBuchiCegarLoop]: Abstraction has 303 states and 388 transitions. [2022-07-13 04:18:24,245 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 04:18:24,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 303 states and 388 transitions. [2022-07-13 04:18:24,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 215 [2022-07-13 04:18:24,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:24,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:24,249 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:24,249 INFO L180 hiAutomatonCegarLoop]: 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] [2022-07-13 04:18:24,249 INFO L752 eck$LassoCheckResult]: Stem: 1429#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1320#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1321#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1423#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1300#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 1231#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1232#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1404#L720-2 [2022-07-13 04:18:24,249 INFO L754 eck$LassoCheckResult]: Loop: 1404#L720-2 assume !false; 1427#L721 assume test_~splverifierCounter~0#1 < 4; 1372#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1362#L730 assume !(0 != test_~tmp~5#1); 1345#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1338#L740 assume !(0 != test_~tmp___0~1#1); 1258#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1305#L750 assume 0 != test_~tmp___2~0#1; 1367#L756-2 assume { :begin_inline_timeShift } true; 1252#L786 assume !(0 != ~pumpRunning~0); 1253#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1333#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1301#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1265#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1266#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1314#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1229#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1230#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1319#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1272#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1273#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1369#L844-1 assume { :end_inline_processEnvironment } true; 1370#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1420#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 1421#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1; 1425#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1426#L803 assume { :end_inline_timeShift } true; 1404#L720-2 [2022-07-13 04:18:24,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-07-13 04:18:24,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529705678] [2022-07-13 04:18:24,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,271 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:24,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1041193540, now seen corresponding path program 1 times [2022-07-13 04:18:24,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242855722] [2022-07-13 04:18:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,285 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1416481280, now seen corresponding path program 1 times [2022-07-13 04:18:24,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888715571] [2022-07-13 04:18:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 04:18:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 04:18:24,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 04:18:24,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888715571] [2022-07-13 04:18:24,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888715571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 04:18:24,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 04:18:24,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 04:18:24,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392021553] [2022-07-13 04:18:24,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 04:18:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 04:18:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 04:18:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 04:18:24,536 INFO L87 Difference]: Start difference. First operand 303 states and 388 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:24,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 04:18:24,651 INFO L93 Difference]: Finished difference Result 1077 states and 1372 transitions. [2022-07-13 04:18:24,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 04:18:24,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1077 states and 1372 transitions. [2022-07-13 04:18:24,657 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 809 [2022-07-13 04:18:24,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1077 states to 1077 states and 1372 transitions. [2022-07-13 04:18:24,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1077 [2022-07-13 04:18:24,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1077 [2022-07-13 04:18:24,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1077 states and 1372 transitions. [2022-07-13 04:18:24,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 04:18:24,664 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1077 states and 1372 transitions. [2022-07-13 04:18:24,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states and 1372 transitions. [2022-07-13 04:18:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 599. [2022-07-13 04:18:24,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 599 states have (on average 1.2637729549248748) internal successors, (757), 598 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 04:18:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 757 transitions. [2022-07-13 04:18:24,675 INFO L392 hiAutomatonCegarLoop]: Abstraction has 599 states and 757 transitions. [2022-07-13 04:18:24,675 INFO L374 stractBuchiCegarLoop]: Abstraction has 599 states and 757 transitions. [2022-07-13 04:18:24,675 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 04:18:24,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 599 states and 757 transitions. [2022-07-13 04:18:24,677 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 430 [2022-07-13 04:18:24,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 04:18:24,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 04:18:24,678 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 04:18:24,678 INFO L180 hiAutomatonCegarLoop]: 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, 1, 1] [2022-07-13 04:18:24,678 INFO L752 eck$LassoCheckResult]: Stem: 2833#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2719#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2720#L651 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2828#L644 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2699#L659 main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 2630#L615 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2631#L588 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2811#L720-2 [2022-07-13 04:18:24,679 INFO L754 eck$LassoCheckResult]: Loop: 2811#L720-2 assume !false; 3128#L721 assume test_~splverifierCounter~0#1 < 4; 2773#L722 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2774#L730 assume !(0 != test_~tmp~5#1); 3188#L730-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 3185#L740 assume !(0 != test_~tmp___0~1#1); 3182#L740-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 3180#L750 assume 0 != test_~tmp___2~0#1; 3157#L756-2 assume { :begin_inline_timeShift } true; 3156#L786 assume !(0 != ~pumpRunning~0); 3139#L786-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2890#L844 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2888#L818-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2886#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2884#L512-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2882#L964-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2879#L964-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2877#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2875#L822-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2671#L810-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2672#L818-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2770#L844-1 assume { :end_inline_processEnvironment } true; 2771#L793-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_#t~ret36#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3136#L467-2 __utac_acc__Specification3_spec__1_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 3135#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 3134#L499 __utac_acc__Specification3_spec__1_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret35#1;havoc __utac_acc__Specification3_spec__1_#t~ret35#1; 3132#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3130#L681-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3129#L803 assume { :end_inline_timeShift } true; 2811#L720-2 [2022-07-13 04:18:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-07-13 04:18:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396727543] [2022-07-13 04:18:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,710 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash -139133417, now seen corresponding path program 1 times [2022-07-13 04:18:24,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822243732] [2022-07-13 04:18:24,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:24,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 04:18:24,730 INFO L85 PathProgramCache]: Analyzing trace with hash -264868141, now seen corresponding path program 1 times [2022-07-13 04:18:24,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 04:18:24,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794573121] [2022-07-13 04:18:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 04:18:24,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 04:18:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,739 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 04:18:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 04:18:24,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 04:18:27,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 04:18:27 BoogieIcfgContainer [2022-07-13 04:18:27,197 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 04:18:27,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 04:18:27,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 04:18:27,198 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 04:18:27,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 04:18:23" (3/4) ... [2022-07-13 04:18:27,200 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 04:18:27,254 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 04:18:27,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 04:18:27,255 INFO L158 Benchmark]: Toolchain (without parser) took 4868.43ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 60.6MB in the beginning and 127.6MB in the end (delta: -66.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:18:27,255 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 04:18:27,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.78ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 62.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.90ms. Allocated memory is still 94.4MB. Free memory was 62.5MB in the beginning and 58.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,256 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,257 INFO L158 Benchmark]: RCFGBuilder took 439.56ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 56.0MB in the beginning and 99.1MB in the end (delta: -43.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,257 INFO L158 Benchmark]: BuchiAutomizer took 3892.19ms. Allocated memory was 130.0MB in the beginning and 161.5MB in the end (delta: 31.5MB). Free memory was 99.1MB in the beginning and 129.7MB in the end (delta: -30.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,258 INFO L158 Benchmark]: Witness Printer took 56.64ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 127.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 04:18:27,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.78ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 62.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.90ms. Allocated memory is still 94.4MB. Free memory was 62.5MB in the beginning and 58.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.56ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 56.0MB in the beginning and 99.1MB in the end (delta: -43.1MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3892.19ms. Allocated memory was 130.0MB in the beginning and 161.5MB in the end (delta: 31.5MB). Free memory was 99.1MB in the beginning and 129.7MB in the end (delta: -30.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Witness Printer took 56.64ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 127.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 599 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. 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, 656 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2087 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2087 mSDsluCounter, 3263 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2398 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 865 mSDtfsCounter, 186 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c6b42a6=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d1d25dd=0, tmp___0=0, tmp=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1083cea3=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b471db=0, \result=1, \result=1, retValue_acc=0, tmp=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65a048cf=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40223ad2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@339ad0e=0, tmp___2=29, tmp=1, cleanupTimeShifts=4, \result=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45774841=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@137f8817=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c405469=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e0b428f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 720]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L611] FCALL select_helpers() [L612] FCALL select_features() [L613] CALL, EXPR valid_product() [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L613] RET, EXPR valid_product() [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L617] FCALL setup() [L618] CALL runTest() [L597] CALL test() [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L765] CALL timeShift() [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L795] CALL processEnvironment() [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L859] CALL processEnvironment__wrappee__highWaterSensor() [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L820] CALL, EXPR isHighWaterLevel() [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L962] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] RET, EXPR isHighWaterSensorDry() [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] RET, EXPR isHighWaterLevel() [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L828] FCALL processEnvironment__wrappee__base() [L859] RET processEnvironment__wrappee__highWaterSensor() [L795] RET processEnvironment() [L801] CALL __utac_acc__Specification3_spec__1() [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L673] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] RET, EXPR isMethaneLevelCritical() [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L679] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] RET, EXPR getWaterLevel() [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) [L801] RET __utac_acc__Specification3_spec__1() [L765] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 04:18:27,304 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... --- 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)