./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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_spec2_product16.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 3364c65adf57fef4e6e40e7680894e092c8fbf29e459121c70f90a68103ac5cb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:24:15,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:24:15,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:24:15,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:24:15,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:24:15,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:24:15,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:24:15,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:24:15,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:24:15,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:24:15,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:24:15,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:24:15,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:24:15,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:24:15,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:24:15,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:24:15,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:24:15,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:24:15,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:24:15,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:24:15,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:24:15,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:24:15,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:24:15,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:24:15,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:24:15,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:24:15,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:24:15,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:24:15,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:24:15,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:24:15,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:24:15,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:24:15,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:24:15,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:24:15,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:24:15,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:24:15,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:24:15,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:24:15,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:24:15,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:24:15,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:24:15,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:24:15,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:24:15,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:24:15,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:24:15,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:24:15,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:24:15,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:24:15,653 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:24:15,653 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:24:15,653 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:24:15,653 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:24:15,654 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:24:15,654 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:24:15,654 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:24:15,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:24:15,654 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:24:15,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:24:15,656 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:24:15,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:24:15,656 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:24:15,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:24:15,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:24:15,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:24:15,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:24:15,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:24:15,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:24:15,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:24:15,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:24:15,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3364c65adf57fef4e6e40e7680894e092c8fbf29e459121c70f90a68103ac5cb [2021-12-22 20:24:15,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:24:15,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:24:15,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:24:15,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:24:15,854 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:24:15,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c [2021-12-22 20:24:15,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266c7ef4c/bdf8e480a43b4424aee034d5fcdb01c5/FLAGc5e1c2a3b [2021-12-22 20:24:16,316 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:24:16,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c [2021-12-22 20:24:16,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266c7ef4c/bdf8e480a43b4424aee034d5fcdb01c5/FLAGc5e1c2a3b [2021-12-22 20:24:16,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266c7ef4c/bdf8e480a43b4424aee034d5fcdb01c5 [2021-12-22 20:24:16,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:24:16,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:24:16,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:16,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:24:16,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:24:16,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c58d3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16, skipping insertion in model container [2021-12-22 20:24:16,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:24:16,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:24:16,610 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_spec2_product16.cil.c[11828,11841] [2021-12-22 20:24:16,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:16,640 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:24:16,664 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_spec2_product16.cil.c[11828,11841] [2021-12-22 20:24:16,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:24:16,704 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:24:16,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16 WrapperNode [2021-12-22 20:24:16,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:24:16,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:16,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:24:16,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:24:16,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,742 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 51, calls inlined = 51, statements flattened = 385 [2021-12-22 20:24:16,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:24:16,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:24:16,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:24:16,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:24:16,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:24:16,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:24:16,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:24:16,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:24:16,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (1/1) ... [2021-12-22 20:24:16,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:24:16,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:24:16,811 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) [2021-12-22 20:24:16,812 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 [2021-12-22 20:24:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:24:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:24:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:24:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:24:16,923 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:24:16,925 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:24:17,272 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:24:17,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:24:17,279 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:24:17,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:17 BoogieIcfgContainer [2021-12-22 20:24:17,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:24:17,281 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:24:17,282 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:24:17,285 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:24:17,285 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:17,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:24:16" (1/3) ... [2021-12-22 20:24:17,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61634eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:17, skipping insertion in model container [2021-12-22 20:24:17,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:17,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:24:16" (2/3) ... [2021-12-22 20:24:17,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61634eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:24:17, skipping insertion in model container [2021-12-22 20:24:17,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:24:17,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:17" (3/3) ... [2021-12-22 20:24:17,287 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product16.cil.c [2021-12-22 20:24:17,322 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:24:17,322 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:24:17,322 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:24:17,322 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:24:17,322 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:24:17,323 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:24:17,323 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:24:17,323 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:24:17,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 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) [2021-12-22 20:24:17,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-22 20:24:17,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:17,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:17,355 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:17,355 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:17,355 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:24:17,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 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) [2021-12-22 20:24:17,364 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-12-22 20:24:17,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:17,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:17,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:17,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:17,375 INFO L791 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 30#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 47#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 101#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 19#L83true main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 77#L636true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 38#L610true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 18#L904true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 48#L839-2true [2021-12-22 20:24:17,376 INFO L793 eck$LassoCheckResult]: Loop: 48#L839-2true assume !false; 84#L840true assume test_~splverifierCounter~0#1 < 4; 63#L841true test_~tmp~6#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 104#L849true assume !(0 != test_~tmp~6#1); 20#L849-2true test_~tmp___0~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 92#L859true assume !(0 != test_~tmp___0~0#1); 50#L859-2true test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 35#L869true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet48#1;havoc test_#t~nondet48#1; 15#L877true assume !(0 != test_~tmp___1~0#1); 41#L877-2true assume { :begin_inline_timeShift } true; 11#L663true assume !(0 != ~pumpRunning~0); 22#L663-2true assume !(0 != ~systemActive~0); 64#L670-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 76#L512-1true __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 75#L915true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 62#L915-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 100#L680true assume { :end_inline_timeShift } true; 48#L839-2true [2021-12-22 20:24:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,381 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-22 20:24:17,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188873672] [2021-12-22 20:24:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,499 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:17,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2042358121, now seen corresponding path program 1 times [2021-12-22 20:24:17,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962073917] [2021-12-22 20:24:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,554 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:17,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1516667598, now seen corresponding path program 1 times [2021-12-22 20:24:17,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534998088] [2021-12-22 20:24:17,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:24:17,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:24:17,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:24:17,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534998088] [2021-12-22 20:24:17,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534998088] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:24:17,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:24:17,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:24:17,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17714579] [2021-12-22 20:24:17,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:24:17,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:24:17,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:24:17,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:24:17,809 INFO L87 Difference]: Start difference. First operand has 105 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 104 states have internal predecessors, (142), 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 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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) [2021-12-22 20:24:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:24:17,893 INFO L93 Difference]: Finished difference Result 355 states and 456 transitions. [2021-12-22 20:24:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:24:17,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 456 transitions. [2021-12-22 20:24:17,902 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 228 [2021-12-22 20:24:17,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 315 states and 416 transitions. [2021-12-22 20:24:17,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 315 [2021-12-22 20:24:17,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 315 [2021-12-22 20:24:17,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 315 states and 416 transitions. [2021-12-22 20:24:17,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:24:17,909 INFO L681 BuchiCegarLoop]: Abstraction has 315 states and 416 transitions. [2021-12-22 20:24:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states and 416 transitions. [2021-12-22 20:24:17,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 147. [2021-12-22 20:24:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 147 states have (on average 1.3265306122448979) internal successors, (195), 146 states have internal predecessors, (195), 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) [2021-12-22 20:24:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 195 transitions. [2021-12-22 20:24:17,931 INFO L704 BuchiCegarLoop]: Abstraction has 147 states and 195 transitions. [2021-12-22 20:24:17,931 INFO L587 BuchiCegarLoop]: Abstraction has 147 states and 195 transitions. [2021-12-22 20:24:17,931 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:24:17,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 147 states and 195 transitions. [2021-12-22 20:24:17,932 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 105 [2021-12-22 20:24:17,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:24:17,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:24:17,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:24:17,933 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] [2021-12-22 20:24:17,933 INFO L791 eck$LassoCheckResult]: Stem: 565#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0; 553#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret33#1, main_~retValue_acc~7#1, main_~tmp~3#1;havoc main_~retValue_acc~7#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 554#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 568#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 533#L83 main_#t~ret33#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret33#1;havoc main_#t~ret33#1; 534#L636 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 538#L610 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 531#L904 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet45#1, test_#t~nondet46#1, test_#t~nondet47#1, test_#t~nondet48#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 532#L839-2 [2021-12-22 20:24:17,933 INFO L793 eck$LassoCheckResult]: Loop: 532#L839-2 assume !false; 552#L840 assume test_~splverifierCounter~0#1 < 4; 498#L841 test_~tmp~6#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 499#L849 assume !(0 != test_~tmp~6#1); 535#L849-2 test_~tmp___0~0#1 := test_#t~nondet46#1;havoc test_#t~nondet46#1; 536#L859 assume !(0 != test_~tmp___0~0#1); 561#L859-2 test_~tmp___2~0#1 := test_#t~nondet47#1;havoc test_#t~nondet47#1; 563#L869 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 564#L825 assume { :end_inline_startSystem } true; 520#L877-2 assume { :begin_inline_timeShift } true; 511#L663 assume !(0 != ~pumpRunning~0); 512#L663-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 541#L695 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 562#L687-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 503#L695-1 assume { :end_inline_processEnvironment } true; 500#L670-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret49#1, __utac_acc__Specification2_spec__2_#t~ret50#1, __utac_acc__Specification2_spec__2_~tmp~7#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~7#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;havoc isMethaneLevelCritical_~retValue_acc~5#1;isMethaneLevelCritical_~retValue_acc~5#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~5#1; 501#L512-1 __utac_acc__Specification2_spec__2_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~7#1 := __utac_acc__Specification2_spec__2_#t~ret49#1;havoc __utac_acc__Specification2_spec__2_#t~ret49#1; 537#L915 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7#1);~methAndRunningLastTime~0 := 0; 496#L915-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 497#L680 assume { :end_inline_timeShift } true; 532#L839-2 [2021-12-22 20:24:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-22 20:24:17,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361906583] [2021-12-22 20:24:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,943 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,953 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:17,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1544573191, now seen corresponding path program 1 times [2021-12-22 20:24:17,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584190183] [2021-12-22 20:24:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,957 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:24:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash -172047518, now seen corresponding path program 1 times [2021-12-22 20:24:17,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:24:17,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506486035] [2021-12-22 20:24:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:24:17,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:24:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:17,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:24:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:24:18,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:24:20,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:24:20 BoogieIcfgContainer [2021-12-22 20:24:20,608 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:24:20,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:24:20,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:24:20,609 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:24:20,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:24:17" (3/4) ... [2021-12-22 20:24:20,613 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-22 20:24:20,644 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 20:24:20,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:24:20,645 INFO L158 Benchmark]: Toolchain (without parser) took 4295.31ms. Allocated memory was 92.3MB in the beginning and 188.7MB in the end (delta: 96.5MB). Free memory was 60.7MB in the beginning and 94.5MB in the end (delta: -33.7MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,646 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:20,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.10ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 59.3MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.48ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 56.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,647 INFO L158 Benchmark]: Boogie Preprocessor took 32.44ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 54.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:24:20,647 INFO L158 Benchmark]: RCFGBuilder took 504.82ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 54.8MB in the beginning and 91.3MB in the end (delta: -36.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,647 INFO L158 Benchmark]: BuchiAutomizer took 3326.61ms. Allocated memory was 121.6MB in the beginning and 188.7MB in the end (delta: 67.1MB). Free memory was 90.7MB in the beginning and 97.6MB in the end (delta: -6.9MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,648 INFO L158 Benchmark]: Witness Printer took 36.35ms. Allocated memory is still 188.7MB. Free memory was 97.6MB in the beginning and 94.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:24:20,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.10ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 59.3MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.48ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 56.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.44ms. Allocated memory is still 92.3MB. Free memory was 56.6MB in the beginning and 54.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 504.82ms. Allocated memory was 92.3MB in the beginning and 121.6MB in the end (delta: 29.4MB). Free memory was 54.8MB in the beginning and 91.3MB in the end (delta: -36.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3326.61ms. Allocated memory was 121.6MB in the beginning and 188.7MB in the end (delta: 67.1MB). Free memory was 90.7MB in the beginning and 97.6MB in the end (delta: -6.9MB). Peak memory consumption was 89.4MB. Max. memory is 16.1GB. * Witness Printer took 36.35ms. Allocated memory is still 188.7MB. Free memory was 97.6MB in the beginning and 94.5MB in the end (delta: 3.1MB). 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 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 147 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 168 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 147 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 584 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 584 mSDsluCounter, 1021 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 895 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 126 mSDtfsCounter, 52 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: 839]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@521c8055=0, retValue_acc=0, tmp___0=0, NULL=1, methaneLevelCritical=0, tmp=0, \result=0, retValue_acc=1, \result=1, retValue_acc=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cbe856c=0, methAndRunningLastTime=0, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e09acdb=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37ada897=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1858fe12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@83bb609=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d950e6f=29, tmp___0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b267f1a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 839]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L469] int waterLevel = 1; [L470] int methaneLevelCritical = 0; [L549] int cleanupTimeShifts = 4; [L655] int pumpRunning = 0; [L656] int systemActive = 1; [L898] int methAndRunningLastTime ; [L627] int retValue_acc ; [L628] int tmp ; [L632] FCALL select_helpers() [L633] FCALL select_features() [L634] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L634] RET, EXPR valid_product() [L634] tmp = valid_product() [L636] COND TRUE \read(tmp) [L638] FCALL setup() [L639] CALL runTest() [L620] CALL __utac_acc__Specification2_spec__1() [L903] methAndRunningLastTime = 0 [L620] RET __utac_acc__Specification2_spec__1() [L621] CALL test() [L830] int splverifierCounter ; [L831] int tmp ; [L832] int tmp___0 ; [L833] int tmp___1 ; [L834] int tmp___2 ; [L837] splverifierCounter = 0 Loop: [L839] COND TRUE 1 [L841] COND TRUE splverifierCounter < 4 [L847] tmp = __VERIFIER_nondet_int() [L849] COND FALSE !(\read(tmp)) [L857] tmp___0 = __VERIFIER_nondet_int() [L859] COND FALSE !(\read(tmp___0)) [L867] tmp___2 = __VERIFIER_nondet_int() [L869] COND TRUE \read(tmp___2) [L871] CALL startSystem() [L824] systemActive = 1 [L871] RET startSystem() [L886] CALL timeShift() [L663] COND FALSE !(\read(pumpRunning)) [L670] COND TRUE \read(systemActive) [L672] CALL processEnvironment() [L692] int tmp ; [L695] COND FALSE !(\read(pumpRunning)) [L710] FCALL processEnvironment__wrappee__methaneQuery() [L672] RET processEnvironment() [L678] CALL __utac_acc__Specification2_spec__2() [L908] int tmp ; [L909] int tmp___0 ; [L913] CALL, EXPR isMethaneLevelCritical() [L508] int retValue_acc ; [L511] retValue_acc = methaneLevelCritical [L512] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L931] methAndRunningLastTime = 0 [L678] RET __utac_acc__Specification2_spec__2() [L886] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-22 20:24:20,683 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)