./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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_product13.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 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:34:09,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:34:09,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:34:09,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:34:09,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:34:09,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:34:09,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:34:09,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:34:09,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:34:09,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:34:09,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:34:09,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:34:09,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:34:09,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:34:09,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:34:09,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:34:09,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:34:09,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:34:09,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:34:09,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:34:09,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:34:09,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:34:09,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:34:10,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:34:10,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:34:10,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:34:10,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:34:10,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:34:10,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:34:10,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:34:10,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:34:10,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:34:10,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:34:10,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:34:10,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:34:10,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:34:10,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:34:10,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:34:10,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:34:10,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:34:10,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:34:10,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:34:10,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:34:10,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:34:10,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:34:10,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:34:10,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:34:10,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:34:10,071 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:34:10,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:34:10,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:34:10,071 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:34:10,072 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:34:10,072 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:34:10,072 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:34:10,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:34:10,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:34:10,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:34:10,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:34:10,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:34:10,075 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:34:10,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:34:10,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:34:10,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:34:10,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:34:10,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:34:10,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:34:10,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:34:10,077 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:34:10,077 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2021-12-21 22:34:10,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:34:10,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:34:10,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:34:10,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:34:10,431 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:34:10,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-12-21 22:34:10,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9476843a/9ded134873924326a07306da3deb8402/FLAG488dcc7ab [2021-12-21 22:34:10,987 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:34:10,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2021-12-21 22:34:11,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9476843a/9ded134873924326a07306da3deb8402/FLAG488dcc7ab [2021-12-21 22:34:11,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9476843a/9ded134873924326a07306da3deb8402 [2021-12-21 22:34:11,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:34:11,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:34:11,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:11,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:34:11,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:34:11,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:11" (1/1) ... [2021-12-21 22:34:11,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ca88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:11, skipping insertion in model container [2021-12-21 22:34:11,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:11" (1/1) ... [2021-12-21 22:34:11,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:34:11,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:34:11,880 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_product13.cil.c[3343,3356] [2021-12-21 22:34:11,995 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:12,008 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:34:12,031 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_product13.cil.c[3343,3356] [2021-12-21 22:34:12,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:12,164 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:34:12,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12 WrapperNode [2021-12-21 22:34:12,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:12,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:12,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:34:12,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:34:12,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,241 INFO L137 Inliner]: procedures = 51, calls = 151, calls flagged for inlining = 48, calls inlined = 50, statements flattened = 392 [2021-12-21 22:34:12,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:12,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:34:12,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:34:12,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:34:12,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:34:12,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:34:12,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:34:12,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:34:12,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (1/1) ... [2021-12-21 22:34:12,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:34:12,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:34:12,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:34:12,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:34:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:34:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:34:12,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:34:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:34:12,570 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:34:12,571 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:34:12,874 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:34:12,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:34:12,880 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:34:12,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:12 BoogieIcfgContainer [2021-12-21 22:34:12,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:34:12,882 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:34:12,882 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:34:12,884 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:34:12,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:12,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:34:11" (1/3) ... [2021-12-21 22:34:12,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684046c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:12, skipping insertion in model container [2021-12-21 22:34:12,886 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:12,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:12" (2/3) ... [2021-12-21 22:34:12,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@684046c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:12, skipping insertion in model container [2021-12-21 22:34:12,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:12,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:12" (3/3) ... [2021-12-21 22:34:12,888 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2021-12-21 22:34:12,915 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:34:12,915 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:34:12,916 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:34:12,916 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:34:12,916 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:34:12,916 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:34:12,916 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:34:12,916 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:34:12,927 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:12,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-21 22:34:12,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:12,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:12,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:12,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:12,947 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:34:12,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:12,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-12-21 22:34:12,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:12,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:12,952 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:12,952 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:12,955 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 20#L161true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 72#L154true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 47#L169true main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 24#L268true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 12#L244true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 44#L480-2true [2021-12-21 22:34:12,956 INFO L793 eck$LassoCheckResult]: Loop: 44#L480-2true assume !false; 26#L481true assume test_~splverifierCounter~0#1 < 4; 48#L482true test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 23#L490true assume !(0 != test_~tmp~4#1); 18#L490-2true test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 92#L500true assume !(0 != test_~tmp___0~1#1); 95#L500-2true test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 66#L510true assume 0 != test_~tmp___2~0#1; 31#L516-2true assume { :begin_inline_timeShift } true; 93#L293true assume !(0 != ~pumpRunning~0); 4#L293-2true assume !(0 != ~systemActive~0); 43#L300-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#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~3#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 42#L99-1true __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 34#L445true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 55#L451-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 58#L310true assume { :end_inline_timeShift } true; 44#L480-2true [2021-12-21 22:34:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:12,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:34:12,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:12,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800335896] [2021-12-21 22:34:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:12,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1035983594, now seen corresponding path program 1 times [2021-12-21 22:34:13,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322528565] [2021-12-21 22:34:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,074 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash 319435482, now seen corresponding path program 1 times [2021-12-21 22:34:13,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898785103] [2021-12-21 22:34:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:13,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898785103] [2021-12-21 22:34:13,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898785103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:13,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:13,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:34:13,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575355468] [2021-12-21 22:34:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:13,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:34:13,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:34:13,345 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:13,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:13,409 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2021-12-21 22:34:13,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:34:13,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 124 transitions. [2021-12-21 22:34:13,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-21 22:34:13,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 89 states and 114 transitions. [2021-12-21 22:34:13,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-12-21 22:34:13,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-12-21 22:34:13,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 114 transitions. [2021-12-21 22:34:13,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:13,430 INFO L681 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-21 22:34:13,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 114 transitions. [2021-12-21 22:34:13,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-12-21 22:34:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 88 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-12-21 22:34:13,452 INFO L704 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-21 22:34:13,452 INFO L587 BuchiCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-12-21 22:34:13,452 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:34:13,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 114 transitions. [2021-12-21 22:34:13,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 60 [2021-12-21 22:34:13,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:13,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:13,454 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:13,454 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:13,454 INFO L791 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 256#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 257#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 273#L169 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 272#L268 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 241#L244 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 238#L480-2 [2021-12-21 22:34:13,455 INFO L793 eck$LassoCheckResult]: Loop: 238#L480-2 assume !false; 274#L481 assume test_~splverifierCounter~0#1 < 4; 275#L482 test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 269#L490 assume !(0 != test_~tmp~4#1); 252#L490-2 test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 253#L500 assume !(0 != test_~tmp___0~1#1); 303#L500-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 261#L510 assume 0 != test_~tmp___2~0#1; 263#L516-2 assume { :begin_inline_timeShift } true; 287#L293 assume !(0 != ~pumpRunning~0); 219#L293-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 220#L325 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 244#L317-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 231#L325-1 assume { :end_inline_processEnvironment } true; 294#L300-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#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~3#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 301#L99-1 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 290#L445 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 227#L451-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 228#L310 assume { :end_inline_timeShift } true; 238#L480-2 [2021-12-21 22:34:13,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:34:13,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070139649] [2021-12-21 22:34:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,465 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2086260171, now seen corresponding path program 1 times [2021-12-21 22:34:13,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661887872] [2021-12-21 22:34:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 215883249, now seen corresponding path program 1 times [2021-12-21 22:34:13,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681544388] [2021-12-21 22:34:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:34:13,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:13,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681544388] [2021-12-21 22:34:13,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681544388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:13,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:13,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 22:34:13,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042019506] [2021-12-21 22:34:13,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:13,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:34:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:34:13,604 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. cyclomatic complexity: 27 Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:13,701 INFO L93 Difference]: Finished difference Result 305 states and 394 transitions. [2021-12-21 22:34:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 22:34:13,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 305 states and 394 transitions. [2021-12-21 22:34:13,704 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 213 [2021-12-21 22:34:13,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 305 states to 305 states and 394 transitions. [2021-12-21 22:34:13,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2021-12-21 22:34:13,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2021-12-21 22:34:13,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 394 transitions. [2021-12-21 22:34:13,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:13,708 INFO L681 BuchiCegarLoop]: Abstraction has 305 states and 394 transitions. [2021-12-21 22:34:13,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 394 transitions. [2021-12-21 22:34:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 171. [2021-12-21 22:34:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 170 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:34:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 217 transitions. [2021-12-21 22:34:13,716 INFO L704 BuchiCegarLoop]: Abstraction has 171 states and 217 transitions. [2021-12-21 22:34:13,716 INFO L587 BuchiCegarLoop]: Abstraction has 171 states and 217 transitions. [2021-12-21 22:34:13,716 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:34:13,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 171 states and 217 transitions. [2021-12-21 22:34:13,717 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 120 [2021-12-21 22:34:13,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:13,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:13,718 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:13,718 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:13,718 INFO L791 eck$LassoCheckResult]: Stem: 735#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 719#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret10#1, main_~retValue_acc~4#1, main_~tmp~0#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 669#L161 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 670#L154 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~3#1;havoc valid_product_~retValue_acc~3#1;valid_product_~retValue_acc~3#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~3#1; 690#L169 main_#t~ret10#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1; 689#L268 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 653#L244 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet25#1, test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 654#L480-2 [2021-12-21 22:34:13,718 INFO L793 eck$LassoCheckResult]: Loop: 654#L480-2 assume !false; 780#L481 assume test_~splverifierCounter~0#1 < 4; 737#L482 test_~tmp~4#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 683#L490 assume !(0 != test_~tmp~4#1); 684#L490-2 test_~tmp___0~1#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 730#L500 assume !(0 != test_~tmp___0~1#1); 731#L500-2 test_~tmp___2~0#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 675#L510 assume 0 != test_~tmp___2~0#1; 677#L516-2 assume { :begin_inline_timeShift } true; 710#L293 assume !(0 != ~pumpRunning~0); 631#L293-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 632#L325 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 657#L317-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 643#L325-1 assume { :end_inline_processEnvironment } true; 718#L300-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~3#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~3#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~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 729#L99-1 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 714#L445 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 715#L131 __utac_acc__Specification3_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret23#1;havoc __utac_acc__Specification3_spec__1_#t~ret23#1; 723#L451 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 782#L451-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 781#L310 assume { :end_inline_timeShift } true; 654#L480-2 [2021-12-21 22:34:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:34:13,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477998121] [2021-12-21 22:34:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,725 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,732 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash 854953992, now seen corresponding path program 1 times [2021-12-21 22:34:13,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616799154] [2021-12-21 22:34:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,737 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:13,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1306623172, now seen corresponding path program 1 times [2021-12-21 22:34:13,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:13,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165410789] [2021-12-21 22:34:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:13,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,749 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:13,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:15,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:34:15 BoogieIcfgContainer [2021-12-21 22:34:15,879 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:34:15,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:34:15,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:34:15,880 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:34:15,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:12" (3/4) ... [2021-12-21 22:34:15,882 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:34:15,908 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:34:15,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:34:15,909 INFO L158 Benchmark]: Toolchain (without parser) took 4376.24ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 113.8MB in the beginning and 125.7MB in the end (delta: -11.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,909 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:34:15,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.65ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 110.3MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.68ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,910 INFO L158 Benchmark]: Boogie Preprocessor took 67.49ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 105.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,911 INFO L158 Benchmark]: RCFGBuilder took 569.74ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 88.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,911 INFO L158 Benchmark]: BuchiAutomizer took 2997.83ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 88.3MB in the beginning and 127.8MB in the end (delta: -39.5MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,911 INFO L158 Benchmark]: Witness Printer took 28.77ms. Allocated memory is still 188.7MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:15,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 92.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.65ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 110.3MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.68ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.49ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 105.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.74ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 88.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2997.83ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 88.3MB in the beginning and 127.8MB in the end (delta: -39.5MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. * Witness Printer took 28.77ms. Allocated memory is still 188.7MB. Free memory was 127.8MB in the beginning and 125.7MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 171 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 134 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 171 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 857 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 857 mSDsluCounter, 741 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 469 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 272 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 480]: 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@731b3482=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, methaneLevelCritical=0, tmp___0=1, \result=0, tmp=0, retValue_acc=0, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b714d23=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3689b293=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12071587=0, tmp___1=0, tmp___2=29, cleanupTimeShifts=4, tmp=1, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fd75046=0, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eb9de32=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@357d9567=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ff6d332=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5697ecec=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 480]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L253] CALL test() [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 Loop: [L480] COND TRUE 1 [L482] COND TRUE splverifierCounter < 4 [L488] tmp = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp)) [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) [L523] CALL timeShift() [L293] COND FALSE !(\read(pumpRunning)) [L300] COND TRUE \read(systemActive) [L302] CALL processEnvironment() [L322] int tmp ; [L325] COND FALSE !(\read(pumpRunning)) [L340] FCALL processEnvironment__wrappee__methaneQuery() [L302] RET processEnvironment() [L308] CALL __utac_acc__Specification3_spec__1() [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; [L443] CALL, EXPR isMethaneLevelCritical() [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); [L443] RET, EXPR isMethaneLevelCritical() [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L449] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L449] RET, EXPR getWaterLevel() [L449] tmp___0 = getWaterLevel() [L451] COND FALSE !(tmp___0 == 2) [L308] RET __utac_acc__Specification3_spec__1() [L523] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:34:15,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)