./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec4_product22.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 0a7c3724e5ee5aec618285d48655e08e5160513f4f9a55965746ea75a93f68ad --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:17:42,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:17:42,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:17:42,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:17:42,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:17:42,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:17:42,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:17:42,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:17:42,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:17:42,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:17:42,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:17:42,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:17:42,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:17:42,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:17:42,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:17:42,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:17:42,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:17:42,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:17:42,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:17:42,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:17:42,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:17:42,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:17:42,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:17:42,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:17:42,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:17:42,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:17:42,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:17:42,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:17:42,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:17:42,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:17:42,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:17:42,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:17:42,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:17:42,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:17:42,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:17:42,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:17:42,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:17:42,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:17:42,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:17:42,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:17:42,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:17:42,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:17:42,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:17:42,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:17:42,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:17:42,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:17:42,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:17:42,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:17:42,859 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:17:42,859 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:17:42,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:17:42,860 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:17:42,860 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:17:42,860 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:17:42,860 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:17:42,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:17:42,861 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:17:42,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:17:42,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:17:42,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:17:42,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:17:42,863 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:17:42,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:17:42,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:17:42,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:17:42,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:17:42,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:17:42,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:17:42,865 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:17:42,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a7c3724e5ee5aec618285d48655e08e5160513f4f9a55965746ea75a93f68ad [2022-02-21 04:17:43,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:17:43,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:17:43,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:17:43,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:17:43,121 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:17:43,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2022-02-21 04:17:43,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17d5975e/0f7aeda9517a42d8a27cb2e13dc3caa0/FLAG1eb3581a1 [2022-02-21 04:17:43,566 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:17:43,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2022-02-21 04:17:43,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17d5975e/0f7aeda9517a42d8a27cb2e13dc3caa0/FLAG1eb3581a1 [2022-02-21 04:17:43,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d17d5975e/0f7aeda9517a42d8a27cb2e13dc3caa0 [2022-02-21 04:17:43,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:17:43,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:17:43,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:43,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:17:43,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:17:43,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:43" (1/1) ... [2022-02-21 04:17:43,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcd59de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:43, skipping insertion in model container [2022-02-21 04:17:43,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:17:43" (1/1) ... [2022-02-21 04:17:43,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:17:44,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:17:44,282 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_spec4_product22.cil.c[8015,8028] [2022-02-21 04:17:44,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:44,371 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:17:44,428 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_spec4_product22.cil.c[8015,8028] [2022-02-21 04:17:44,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:17:44,513 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:17:44,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44 WrapperNode [2022-02-21 04:17:44,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:17:44,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:44,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:17:44,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:17:44,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,596 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 78, statements flattened = 560 [2022-02-21 04:17:44,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:17:44,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:17:44,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:17:44,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:17:44,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:17:44,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:17:44,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:17:44,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:17:44,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (1/1) ... [2022-02-21 04:17:44,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:17:44,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:17:44,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:17:44,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:17:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:17:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:17:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:17:44,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:17:44,767 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:17:44,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:17:45,266 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:17:45,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:17:45,276 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:17:45,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:45 BoogieIcfgContainer [2022-02-21 04:17:45,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:17:45,280 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:17:45,280 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:17:45,284 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:17:45,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:45,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:17:43" (1/3) ... [2022-02-21 04:17:45,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2977c62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:45, skipping insertion in model container [2022-02-21 04:17:45,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:45,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:17:44" (2/3) ... [2022-02-21 04:17:45,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2977c62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:17:45, skipping insertion in model container [2022-02-21 04:17:45,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:17:45,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:45" (3/3) ... [2022-02-21 04:17:45,288 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product22.cil.c [2022-02-21 04:17:45,339 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:17:45,339 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:17:45,340 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:17:45,340 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:17:45,340 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:17:45,340 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:17:45,340 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:17:45,340 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:17:45,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:45,402 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:45,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:45,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:45,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:45,409 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:45,409 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:17:45,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:45,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 97 [2022-02-21 04:17:45,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:45,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:45,446 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:45,446 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:45,455 INFO L791 eck$LassoCheckResult]: Stem: 133#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 120#L171true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 97#L164true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 138#L179true main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 103#L527true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 82#L504true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 16#L388-2true [2022-02-21 04:17:45,456 INFO L793 eck$LassoCheckResult]: Loop: 16#L388-2true assume !false; 15#L389true assume test_~splverifierCounter~0#1 < 4; 101#L390true test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 126#L398true assume !(0 != test_~tmp~3#1); 25#L398-2true test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 118#L408true assume !(0 != test_~tmp___0~1#1); 87#L408-2true test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 14#L418true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 123#L426true assume 0 != test_~tmp___1~0#1; 31#L426-2true assume { :begin_inline_timeShift } true; 75#L198true assume !(0 != ~pumpRunning~0); 83#L198-2true assume !(0 != ~systemActive~0); 54#L205-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~5#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~5#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#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; 139#L132true __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~5#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 144#L558true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5#1); 119#L558-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 150#L215true assume { :end_inline_timeShift } true; 16#L388-2true [2022-02-21 04:17:45,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:45,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:17:45,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:45,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052121460] [2022-02-21 04:17:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:45,573 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:45,621 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1422593666, now seen corresponding path program 1 times [2022-02-21 04:17:45,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:45,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642729243] [2022-02-21 04:17:45,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:45,634 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:45,643 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash 490912062, now seen corresponding path program 1 times [2022-02-21 04:17:45,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:45,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155186487] [2022-02-21 04:17:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:17:45,768 INFO L290 TraceCheckUtils]: 0: Hoare triple {159#true} 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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {161#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:45,769 INFO L290 TraceCheckUtils]: 1: Hoare triple {161#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; {161#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:45,769 INFO L290 TraceCheckUtils]: 2: Hoare triple {161#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {161#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:17:45,770 INFO L290 TraceCheckUtils]: 3: Hoare triple {161#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; {162#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:17:45,771 INFO L290 TraceCheckUtils]: 4: Hoare triple {162#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; {163#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} is VALID [2022-02-21 04:17:45,771 INFO L290 TraceCheckUtils]: 5: Hoare triple {163#(= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)} assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,772 INFO L290 TraceCheckUtils]: 6: Hoare triple {164#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,773 INFO L290 TraceCheckUtils]: 7: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !false; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,773 INFO L290 TraceCheckUtils]: 8: Hoare triple {164#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,774 INFO L290 TraceCheckUtils]: 9: Hoare triple {164#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,775 INFO L290 TraceCheckUtils]: 10: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,775 INFO L290 TraceCheckUtils]: 11: Hoare triple {164#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,776 INFO L290 TraceCheckUtils]: 12: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,776 INFO L290 TraceCheckUtils]: 13: Hoare triple {164#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,777 INFO L290 TraceCheckUtils]: 14: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,778 INFO L290 TraceCheckUtils]: 15: Hoare triple {164#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,778 INFO L290 TraceCheckUtils]: 16: Hoare triple {164#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,779 INFO L290 TraceCheckUtils]: 17: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {164#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:17:45,779 INFO L290 TraceCheckUtils]: 18: Hoare triple {164#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {160#false} is VALID [2022-02-21 04:17:45,780 INFO L290 TraceCheckUtils]: 19: Hoare triple {160#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~5#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~5#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#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; {160#false} is VALID [2022-02-21 04:17:45,780 INFO L290 TraceCheckUtils]: 20: Hoare triple {160#false} __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~5#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; {160#false} is VALID [2022-02-21 04:17:45,780 INFO L290 TraceCheckUtils]: 21: Hoare triple {160#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5#1); {160#false} is VALID [2022-02-21 04:17:45,781 INFO L290 TraceCheckUtils]: 22: Hoare triple {160#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {160#false} is VALID [2022-02-21 04:17:45,781 INFO L290 TraceCheckUtils]: 23: Hoare triple {160#false} assume { :end_inline_timeShift } true; {160#false} is VALID [2022-02-21 04:17:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:17:45,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:17:45,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155186487] [2022-02-21 04:17:45,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155186487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:17:45,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:17:45,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:17:45,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963341712] [2022-02-21 04:17:45,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:17:45,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:17:45,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:17:45,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:17:45,969 INFO L87 Difference]: Start difference. First operand has 151 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 150 states have internal predecessors, (202), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:46,348 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2022-02-21 04:17:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:17:46,357 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,383 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:17:46,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 188 transitions. [2022-02-21 04:17:46,399 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:17:46,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 138 states and 178 transitions. [2022-02-21 04:17:46,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 138 [2022-02-21 04:17:46,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2022-02-21 04:17:46,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 178 transitions. [2022-02-21 04:17:46,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:17:46,412 INFO L681 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:46,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 178 transitions. [2022-02-21 04:17:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-02-21 04:17:46,455 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:17:46,460 INFO L82 GeneralOperation]: Start isEquivalent. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,462 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,469 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:46,478 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:17:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:46,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:46,480 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:46,481 INFO L74 IsIncluded]: Start isIncluded. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:17:46,481 INFO L87 Difference]: Start difference. First operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 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 138 states and 178 transitions. [2022-02-21 04:17:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:17:46,488 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-02-21 04:17:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:46,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:17:46,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:17:46,494 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:17:46,494 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:17:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.289855072463768) internal successors, (178), 137 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:17:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2022-02-21 04:17:46,500 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:46,500 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 178 transitions. [2022-02-21 04:17:46,500 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:17:46,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 178 transitions. [2022-02-21 04:17:46,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2022-02-21 04:17:46,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:17:46,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:17:46,504 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:17:46,504 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] [2022-02-21 04:17:46,504 INFO L791 eck$LassoCheckResult]: Stem: 452#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;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 383#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret26#1, main_~retValue_acc~8#1, main_~tmp~4#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 384#L171 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 432#L164 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~4#1;havoc valid_product_~retValue_acc~4#1;valid_product_~retValue_acc~4#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~4#1; 433#L179 main_#t~ret26#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret26#1;havoc main_#t~ret26#1; 439#L527 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 423#L504 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 345#L388-2 [2022-02-21 04:17:46,505 INFO L793 eck$LassoCheckResult]: Loop: 345#L388-2 assume !false; 342#L389 assume test_~splverifierCounter~0#1 < 4; 343#L390 test_~tmp~3#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 437#L398 assume !(0 != test_~tmp~3#1); 357#L398-2 test_~tmp___0~1#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 358#L408 assume !(0 != test_~tmp___0~1#1); 322#L408-2 test_~tmp___2~0#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 339#L418 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 340#L426 assume 0 != test_~tmp___1~0#1; 368#L426-2 assume { :begin_inline_timeShift } true; 369#L198 assume !(0 != ~pumpRunning~0); 352#L198-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret11#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 393#L256 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret10#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1; 394#L230-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 448#L222-3 assume { :end_inline_processEnvironment__wrappee__base } true; 334#L230-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 386#L256-1 assume { :end_inline_processEnvironment } true; 396#L205-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret27#1, __utac_acc__Specification4_spec__1_#t~ret28#1, __utac_acc__Specification4_spec__1_~tmp~5#1, __utac_acc__Specification4_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification4_spec__1_~tmp~5#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~2#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; 397#L132 __utac_acc__Specification4_spec__1_#t~ret27#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~5#1 := __utac_acc__Specification4_spec__1_#t~ret27#1;havoc __utac_acc__Specification4_spec__1_#t~ret27#1; 454#L558 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5#1); 428#L558-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 449#L215 assume { :end_inline_timeShift } true; 345#L388-2 [2022-02-21 04:17:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:17:46,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:46,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949986627] [2022-02-21 04:17:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,544 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,574 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:46,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1849145086, now seen corresponding path program 1 times [2022-02-21 04:17:46,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:46,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182498432] [2022-02-21 04:17:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:46,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,591 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,597 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:46,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:17:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash -732302394, now seen corresponding path program 1 times [2022-02-21 04:17:46,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:17:46,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011947124] [2022-02-21 04:17:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:17:46,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:17:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:17:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:17:46,645 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:17:49,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:17:49 BoogieIcfgContainer [2022-02-21 04:17:49,756 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:17:49,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:17:49,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:17:49,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:17:49,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:17:45" (3/4) ... [2022-02-21 04:17:49,759 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:17:49,811 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:17:49,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:17:49,813 INFO L158 Benchmark]: Toolchain (without parser) took 5855.27ms. Allocated memory was 94.4MB in the beginning and 161.5MB in the end (delta: 67.1MB). Free memory was 60.0MB in the beginning and 72.6MB in the end (delta: -12.5MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,813 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:49,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.69ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 59.3MB in the end (delta: 511.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.67ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 55.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,815 INFO L158 Benchmark]: Boogie Preprocessor took 31.81ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,815 INFO L158 Benchmark]: RCFGBuilder took 648.87ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 52.5MB in the beginning and 102.5MB in the end (delta: -50.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,816 INFO L158 Benchmark]: BuchiAutomizer took 4476.06ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 102.5MB in the beginning and 74.7MB in the end (delta: 27.9MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2022-02-21 04:17:49,816 INFO L158 Benchmark]: Witness Printer took 55.54ms. Allocated memory is still 161.5MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:17:49,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 65.9MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.69ms. Allocated memory is still 94.4MB. Free memory was 59.8MB in the beginning and 59.3MB in the end (delta: 511.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.67ms. Allocated memory is still 94.4MB. Free memory was 59.2MB in the beginning and 55.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.81ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.87ms. Allocated memory was 94.4MB in the beginning and 134.2MB in the end (delta: 39.8MB). Free memory was 52.5MB in the beginning and 102.5MB in the end (delta: -50.0MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4476.06ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 102.5MB in the beginning and 74.7MB in the end (delta: 27.9MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. * Witness Printer took 55.54ms. Allocated memory is still 161.5MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). There was no memory consumed. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 138 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 138 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 551 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 183 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 388]: 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@16887039=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4828a7=0, methaneLevelCritical=0, tmp=1, retValue_acc=0, \result=1, retValue_acc=1, tmp___2=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4031ec3a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dffd50e=0, cleanupTimeShifts=4, tmp=0, \result=0, tmp=0, head=0, \result=1, tmp___1=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@618c2f1d=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f4dd20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77cceb40=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57f7715a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25181ec9=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 388]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L190] int pumpRunning = 0; [L191] int systemActive = 1; [L445] int cleanupTimeShifts = 4; [L745] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L175] int retValue_acc ; [L178] retValue_acc = 1 [L179] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L379] int splverifierCounter ; [L380] int tmp ; [L381] int tmp___0 ; [L382] int tmp___1 ; [L383] int tmp___2 ; [L386] splverifierCounter = 0 Loop: [L388] COND TRUE 1 [L390] COND TRUE splverifierCounter < 4 [L396] tmp = __VERIFIER_nondet_int() [L398] COND FALSE !(\read(tmp)) [L406] tmp___0 = __VERIFIER_nondet_int() [L408] COND FALSE !(\read(tmp___0)) [L416] tmp___2 = __VERIFIER_nondet_int() [L418] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) [L433] CALL timeShift() [L198] COND FALSE !(\read(pumpRunning)) [L205] COND TRUE \read(systemActive) [L207] CALL processEnvironment() [L253] int tmp ; [L256] COND FALSE !(\read(pumpRunning)) [L271] CALL processEnvironment__wrappee__lowWaterSensor() [L227] int tmp ; [L230] COND FALSE !(\read(pumpRunning)) [L245] FCALL processEnvironment__wrappee__base() [L271] RET processEnvironment__wrappee__lowWaterSensor() [L207] RET processEnvironment() [L213] CALL __utac_acc__Specification4_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L556] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L556] RET, EXPR getWaterLevel() [L556] tmp = getWaterLevel() [L558] COND FALSE !(tmp == 0) [L213] RET __utac_acc__Specification4_spec__1() [L433] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:17:49,863 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)