./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product32.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_product32.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 cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:34:22,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:34:22,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:34:22,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:34:22,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:34:22,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:34:22,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:34:22,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:34:22,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:34:22,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:34:22,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:34:22,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:34:22,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:34:22,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:34:22,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:34:22,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:34:22,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:34:22,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:34:22,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:34:22,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:34:22,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:34:22,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:34:22,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:34:22,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:34:22,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:34:22,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:34:22,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:34:22,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:34:22,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:34:22,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:34:22,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:34:22,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:34:22,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:34:22,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:34:22,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:34:22,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:34:22,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:34:22,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:34:22,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:34:22,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:34:22,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:34:22,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:34:22,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:34:22,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:34:22,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:34:22,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:34:22,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:34:22,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:34:22,753 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:34:22,753 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:34:22,753 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:34:22,753 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:34:22,754 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:34:22,754 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:34:22,754 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:34:22,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:34:22,754 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:34:22,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:34:22,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:34:22,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:34:22,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:34:22,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:34:22,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:34:22,758 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:34:22,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 [2021-12-21 22:34:22,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:34:22,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:34:22,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:34:22,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:34:22,949 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:34:22,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-12-21 22:34:23,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d734d58fd/5bd24f82ec4940a1808e31ce9a91b20d/FLAG36e813b02 [2021-12-21 22:34:23,382 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:34:23,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-12-21 22:34:23,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d734d58fd/5bd24f82ec4940a1808e31ce9a91b20d/FLAG36e813b02 [2021-12-21 22:34:23,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d734d58fd/5bd24f82ec4940a1808e31ce9a91b20d [2021-12-21 22:34:23,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:34:23,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:34:23,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:23,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:34:23,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:34:23,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d2104d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23, skipping insertion in model container [2021-12-21 22:34:23,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:34:23,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:34:23,650 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_product32.cil.c[15274,15287] [2021-12-21 22:34:23,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:23,682 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:34:23,730 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_product32.cil.c[15274,15287] [2021-12-21 22:34:23,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:34:23,751 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:34:23,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23 WrapperNode [2021-12-21 22:34:23,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:34:23,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:23,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:34:23,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:34:23,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,810 INFO L137 Inliner]: procedures = 56, calls = 159, calls flagged for inlining = 56, calls inlined = 83, statements flattened = 600 [2021-12-21 22:34:23,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:34:23,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:34:23,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:34:23,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:34:23,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:34:23,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:34:23,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:34:23,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:34:23,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (1/1) ... [2021-12-21 22:34:23,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:34:23,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:34:23,869 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 22:34:23,870 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 22:34:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:34:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:34:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:34:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:34:23,949 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:34:23,950 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:34:24,255 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:34:24,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:34:24,267 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:34:24,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:24 BoogieIcfgContainer [2021-12-21 22:34:24,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:34:24,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:34:24,270 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:34:24,273 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:34:24,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:24,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:34:23" (1/3) ... [2021-12-21 22:34:24,277 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f4bf76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:24, skipping insertion in model container [2021-12-21 22:34:24,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:24,277 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:34:23" (2/3) ... [2021-12-21 22:34:24,278 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f4bf76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:34:24, skipping insertion in model container [2021-12-21 22:34:24,281 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:34:24,283 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:24" (3/3) ... [2021-12-21 22:34:24,284 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-12-21 22:34:24,323 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:34:24,323 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:34:24,323 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:34:24,323 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:34:24,323 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:34:24,324 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:34:24,324 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:34:24,324 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:34:24,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 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 22:34:24,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2021-12-21 22:34:24,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:24,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:24,382 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,382 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,382 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:34:24,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 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 22:34:24,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2021-12-21 22:34:24,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:24,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:24,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,408 INFO L791 eck$LassoCheckResult]: Stem: 147#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 61#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 51#L883true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 114#L876true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 94#L891true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 99#L812true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 20#L786true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 47#L432-2true [2021-12-21 22:34:24,409 INFO L793 eck$LassoCheckResult]: Loop: 47#L432-2true assume !false; 90#L433true assume test_~splverifierCounter~0#1 < 4; 22#L434true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 37#L442true assume !(0 != test_~tmp~3#1); 121#L442-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 95#L452true assume !(0 != test_~tmp___0~0#1); 73#L452-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 103#L462true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 8#L714true assume { :end_inline_startSystem } true; 52#L470-2true assume { :begin_inline_timeShift } true; 29#L507true assume !(0 != ~pumpRunning~0); 40#L507-2true assume !(0 != ~systemActive~0); 56#L514-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_#t~ret46#1, __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 26#L939-1true __utac_acc__Specification3_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret45#1;havoc __utac_acc__Specification3_spec__1_#t~ret45#1; 17#L836true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 78#L842-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 36#L524true assume { :end_inline_timeShift } true; 47#L432-2true [2021-12-21 22:34:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:34:24,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:24,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308659353] [2021-12-21 22:34:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:24,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,568 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:24,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1850073299, now seen corresponding path program 1 times [2021-12-21 22:34:24,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:24,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583467188] [2021-12-21 22:34:24,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:24,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:24,650 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 22:34:24,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:24,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583467188] [2021-12-21 22:34:24,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583467188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:24,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:24,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:34:24,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698983278] [2021-12-21 22:34:24,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:24,669 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:34:24,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:24,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:34:24,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:34:24,699 INFO L87 Difference]: Start difference. First operand has 161 states, 160 states have (on average 1.35) internal successors, (216), 160 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 22:34:24,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:24,776 INFO L93 Difference]: Finished difference Result 307 states and 399 transitions. [2021-12-21 22:34:24,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:34:24,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 307 states and 399 transitions. [2021-12-21 22:34:24,787 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 200 [2021-12-21 22:34:24,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 307 states to 287 states and 378 transitions. [2021-12-21 22:34:24,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 287 [2021-12-21 22:34:24,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 287 [2021-12-21 22:34:24,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 287 states and 378 transitions. [2021-12-21 22:34:24,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:24,802 INFO L681 BuchiCegarLoop]: Abstraction has 287 states and 378 transitions. [2021-12-21 22:34:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states and 378 transitions. [2021-12-21 22:34:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 284. [2021-12-21 22:34:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 284 states have (on average 1.3169014084507042) internal successors, (374), 283 states have internal predecessors, (374), 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 22:34:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 374 transitions. [2021-12-21 22:34:24,839 INFO L704 BuchiCegarLoop]: Abstraction has 284 states and 374 transitions. [2021-12-21 22:34:24,839 INFO L587 BuchiCegarLoop]: Abstraction has 284 states and 374 transitions. [2021-12-21 22:34:24,840 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:34:24,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 284 states and 374 transitions. [2021-12-21 22:34:24,841 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 197 [2021-12-21 22:34:24,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:24,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:24,842 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,842 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:24,842 INFO L791 eck$LassoCheckResult]: Stem: 650#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 567#L883 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 568#L876 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 610#L891 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 611#L812 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 507#L786 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 508#L432-2 [2021-12-21 22:34:24,842 INFO L793 eck$LassoCheckResult]: Loop: 508#L432-2 assume !false; 707#L433 assume test_~splverifierCounter~0#1 < 4; 708#L434 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 542#L442 assume !(0 != test_~tmp~3#1); 544#L442-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 612#L452 assume !(0 != test_~tmp___0~0#1); 590#L452-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 591#L462 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 486#L714 assume { :end_inline_startSystem } true; 487#L470-2 assume { :begin_inline_timeShift } true; 527#L507 assume !(0 != ~pumpRunning~0); 528#L507-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 549#L565 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 755#L539-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 740#L531-3 assume { :end_inline_processEnvironment__wrappee__base } true; 739#L539-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 736#L565-1 assume { :end_inline_processEnvironment } true; 734#L514-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_#t~ret46#1, __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 732#L939-1 __utac_acc__Specification3_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret45#1;havoc __utac_acc__Specification3_spec__1_#t~ret45#1; 503#L836 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 504#L842-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 709#L524 assume { :end_inline_timeShift } true; 508#L432-2 [2021-12-21 22:34:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:34:24,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:24,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127280937] [2021-12-21 22:34:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:24,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,858 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:24,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1764500480, now seen corresponding path program 1 times [2021-12-21 22:34:24,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:24,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028177441] [2021-12-21 22:34:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:24,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:24,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:24,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:24,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1413624124, now seen corresponding path program 1 times [2021-12-21 22:34:24,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:24,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597036274] [2021-12-21 22:34:24,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:24,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:34:24,968 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 22:34:24,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:34:24,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597036274] [2021-12-21 22:34:24,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597036274] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:34:24,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:34:24,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 22:34:24,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887247185] [2021-12-21 22:34:24,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:34:25,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:34:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:34:25,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:34:25,086 INFO L87 Difference]: Start difference. First operand 284 states and 374 transitions. cyclomatic complexity: 93 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 22:34:25,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:34:25,205 INFO L93 Difference]: Finished difference Result 1022 states and 1348 transitions. [2021-12-21 22:34:25,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 22:34:25,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1022 states and 1348 transitions. [2021-12-21 22:34:25,212 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 744 [2021-12-21 22:34:25,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1022 states to 1022 states and 1348 transitions. [2021-12-21 22:34:25,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1022 [2021-12-21 22:34:25,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1022 [2021-12-21 22:34:25,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1348 transitions. [2021-12-21 22:34:25,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:34:25,220 INFO L681 BuchiCegarLoop]: Abstraction has 1022 states and 1348 transitions. [2021-12-21 22:34:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1348 transitions. [2021-12-21 22:34:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 561. [2021-12-21 22:34:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 561 states have (on average 1.3065953654188949) internal successors, (733), 560 states have internal predecessors, (733), 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 22:34:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 733 transitions. [2021-12-21 22:34:25,257 INFO L704 BuchiCegarLoop]: Abstraction has 561 states and 733 transitions. [2021-12-21 22:34:25,257 INFO L587 BuchiCegarLoop]: Abstraction has 561 states and 733 transitions. [2021-12-21 22:34:25,258 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:34:25,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 561 states and 733 transitions. [2021-12-21 22:34:25,260 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 394 [2021-12-21 22:34:25,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:34:25,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:34:25,263 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:25,264 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:34:25,264 INFO L791 eck$LassoCheckResult]: Stem: 1983#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(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1906#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 1894#L883 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1895#L876 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1947#L891 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 1948#L812 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 1830#L786 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1831#L432-2 [2021-12-21 22:34:25,264 INFO L793 eck$LassoCheckResult]: Loop: 1831#L432-2 assume !false; 2097#L433 assume test_~splverifierCounter~0#1 < 4; 2095#L434 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2092#L442 assume !(0 != test_~tmp~3#1); 2088#L442-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2075#L452 assume !(0 != test_~tmp___0~0#1); 1971#L452-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2169#L462 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1810#L714 assume { :end_inline_startSystem } true; 1811#L470-2 assume { :begin_inline_timeShift } true; 2157#L507 assume !(0 != ~pumpRunning~0); 2154#L507-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2150#L565 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret31#1, processEnvironment__wrappee__methaneQuery_~tmp~4#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~4#1; 1982#L539-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1955#L531-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1845#L539-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2136#L565-1 assume { :end_inline_processEnvironment } true; 2104#L514-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret45#1, __utac_acc__Specification3_spec__1_#t~ret46#1, __utac_acc__Specification3_spec__1_#t~ret47#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1842#L939-1 __utac_acc__Specification3_spec__1_#t~ret45#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret45#1;havoc __utac_acc__Specification3_spec__1_#t~ret45#1; 1843#L836 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1951#L971 __utac_acc__Specification3_spec__1_#t~ret46#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret46#1;havoc __utac_acc__Specification3_spec__1_#t~ret46#1; 1952#L842 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1927#L842-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1928#L524 assume { :end_inline_timeShift } true; 1831#L432-2 [2021-12-21 22:34:25,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:25,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:34:25,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:25,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307424866] [2021-12-21 22:34:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:25,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash -825867277, now seen corresponding path program 1 times [2021-12-21 22:34:25,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:25,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938442542] [2021-12-21 22:34:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:25,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,320 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,324 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:34:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1281864265, now seen corresponding path program 1 times [2021-12-21 22:34:25,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:34:25,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41553499] [2021-12-21 22:34:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:34:25,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:34:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,332 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:34:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:34:25,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:34:27,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:34:27 BoogieIcfgContainer [2021-12-21 22:34:27,602 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:34:27,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:34:27,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:34:27,603 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:34:27,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:34:24" (3/4) ... [2021-12-21 22:34:27,605 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:34:27,656 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:34:27,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:34:27,661 INFO L158 Benchmark]: Toolchain (without parser) took 4254.16ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 60.4MB in the beginning and 104.6MB in the end (delta: -44.1MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,662 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:34:27,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.87ms. Allocated memory is still 92.3MB. Free memory was 60.2MB in the beginning and 59.3MB in the end (delta: 924.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.94ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 55.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,663 INFO L158 Benchmark]: Boogie Preprocessor took 27.11ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,664 INFO L158 Benchmark]: RCFGBuilder took 429.77ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 77.0MB in the end (delta: -23.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,664 INFO L158 Benchmark]: BuchiAutomizer took 3332.41ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 77.0MB in the beginning and 33.5MB in the end (delta: 43.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,664 INFO L158 Benchmark]: Witness Printer took 58.02ms. Allocated memory is still 136.3MB. Free memory was 33.5MB in the beginning and 104.6MB in the end (delta: -71.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:34:27,665 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 92.3MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.87ms. Allocated memory is still 92.3MB. Free memory was 60.2MB in the beginning and 59.3MB in the end (delta: 924.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.94ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 55.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.11ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.77ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 77.0MB in the end (delta: -23.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3332.41ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 77.0MB in the beginning and 33.5MB in the end (delta: 43.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Witness Printer took 58.02ms. Allocated memory is still 136.3MB. Free memory was 33.5MB in the beginning and 104.6MB in the end (delta: -71.1MB). 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 5 locations. The remainder module has 561 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 464 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 561 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 921 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 921 mSDsluCounter, 1604 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1097 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 507 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 432]: 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@69dec89=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f5fc66d=0, NULL=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56c8b2c8=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@53b8394c=0, \result=1, retValue_acc=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26133798=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b3b7dd6=0, tmp=1, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a45491e=0, tmp___1=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79f76a2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42dbffab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52d994ca=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 432]: 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; [L499] int pumpRunning = 0; [L500] int systemActive = 1; [L727] int cleanupTimeShifts = 4; [L896] int waterLevel = 1; [L897] int methaneLevelCritical = 0; [L803] int retValue_acc ; [L804] int tmp ; [L808] FCALL select_helpers() [L809] FCALL select_features() [L810] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); [L810] RET, EXPR valid_product() [L810] tmp = valid_product() [L812] COND TRUE \read(tmp) [L814] FCALL setup() [L815] CALL runTest() [L794] CALL test() [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 Loop: [L432] COND TRUE 1 [L434] COND TRUE splverifierCounter < 4 [L440] tmp = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp)) [L450] tmp___0 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___0)) [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND TRUE \read(tmp___2) [L464] CALL startSystem() [L713] systemActive = 1 [L464] RET startSystem() [L479] CALL timeShift() [L507] COND FALSE !(\read(pumpRunning)) [L514] COND TRUE \read(systemActive) [L516] CALL processEnvironment() [L562] int tmp ; [L565] COND FALSE !(\read(pumpRunning)) [L580] CALL processEnvironment__wrappee__methaneQuery() [L536] int tmp ; [L539] COND FALSE !(\read(pumpRunning)) [L554] FCALL processEnvironment__wrappee__base() [L580] RET processEnvironment__wrappee__methaneQuery() [L516] RET processEnvironment() [L522] CALL __utac_acc__Specification3_spec__1() [L828] int tmp ; [L829] int tmp___0 ; [L830] int tmp___1 ; [L834] CALL, EXPR isMethaneLevelCritical() [L935] int retValue_acc ; [L938] retValue_acc = methaneLevelCritical [L939] return (retValue_acc); [L834] RET, EXPR isMethaneLevelCritical() [L834] tmp = isMethaneLevelCritical() [L836] COND FALSE !(\read(tmp)) [L840] CALL, EXPR getWaterLevel() [L967] int retValue_acc ; [L970] retValue_acc = waterLevel [L971] return (retValue_acc); [L840] RET, EXPR getWaterLevel() [L840] tmp___0 = getWaterLevel() [L842] COND FALSE !(tmp___0 == 2) [L522] RET __utac_acc__Specification3_spec__1() [L479] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:34:27,696 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)